Towed marine set

Abstract

Modular Foil System for Towed Marine Assembly. The present invention relates to a marine assembly having various embodiments of a modular foil system is disclosed. The modular foil system may be configured to generate lift when towed in a marine environment, and thus used to move, position, and / or depress instrumentation of the assembly. The modular foil system may include several groups of foil sections, each having an angle of attack that is adjustable relative to other groups of foil sections. For example, each group may be supported by a pair of passing cables, and an actuator may adjust a tension in one or both of the passing cables, thereby alerting the angle of attack. The pair of passing cables may converge with each other at attachment points adjacent to opposite ends of a given group of foil sections of the modular system.the connection points thus establish a modular structure to couple the given group to other groups of leaves in the system.

Description

1 / 63 MARINE UNIT TOWED - CROSS-REFERENCE TO RELATED REQUESTS

[0001] This patent application is a non-provisional patent application for, and claims priority to, U.S. Provisional Application No. 62 / 743,480 filed on October 9, 2018, and entitled Modular Hydrodynamic Profile System for Towed Marine Assembly, disclosure of which is incorporated by reference in its entirety. FIELD

[0002] The present invention generally relates to towed marine assemblies. More particularly, the present invention relates to systems and techniques for controlling the hydrodynamic orientation of the hydrodynamic profile in the marine assemblies. BACKGROUND

[0003] In towed marine seismic exploration, an array of hydrophones is typically towed behind a marine vessel near the sea surface. The hydrophones are mounted on multi-sensor cables, commonly referred to as streamers. The streamers serve as platforms or carriers for the hydrophones, which are distributed along the length of each streamer in the array.

[0004] A set of seismic sources, also towed near the sea surface, are operated to periodically emit acoustic energy. The acoustic energy of interest propagates downwards through the seawater (or other water column), penetrates the ocean floor, reflects off the submarine strata and other underlying structures, and returns upwards through the water column to the hydrophonic array.

[0005] The reflected seismic energy (or acoustic wave energy) reaches the receiving points of the towed hydrophone array. The array includes many of these receiving points, distributed along Petition 870260061129, dated 06 / 22 / 2026, p. 11 / 173 2 / 63 of each of the streamer cable sensors, with sensors configured to generate data logs that characterize the upward acoustic waves (or seismic waves) received from subsurface structures beneath the seabed, at each of the receiving points. The hydrophone data logs are subsequently processed to generate seismic images of the underlying structure.

[0006] In the field of subsea seismic exploration, there has recently been a demand for seismic equipment operators to conduct their surveys with submerged seismic equipment below the depths at which most seismic surveys have been conducted in the past. These new, deeper operational targets can now lie well below the depth of the surface reference equipment (i.e., the vessel and paravanes) that is used to tow and laterally spread the seismic sensors.

[0007] Typical marine depressors for maintaining equipment at a substantially constant submerged depth tend to be quite small with very poor aspect ratios, thus resulting in low lift. Aspect ratio is defined as the span of the depressor divided by its chord line length. Wing aspect ratios with high aspect ratios generate high downward lift forces for a minimum of drag (such that lift-to-drag ratios as high as 10:1 or more are possible), while wing aspect ratios as low as 1 or 2 (i.e., where the span and chord are approximately on the same scale) will typically have lift-to-drag ratios as low as 2:1, or even lower. Conventional depressors can often also provide payload bays that can be used to hold additional ballast to supplement the force. Petition 870260061129, dated 06 / 22 / 2026, p. 12 / 173 3 / 63 descending wave generated by the depressor.

[0008] The problem with using earth lift to generate downforce is that it does not scale towing speed and provides a constant downforce regardless of the speed at which the depressor moves through the water. This is often disadvantageous for applications where a range of operating speeds is expected, with the requirement that the towed equipment maintain a stable depth over that speed range. Consequently, there is no easy, economical, or ideal way to submerge and operate seismic equipment, such as the towed streamer cable, at the desired shallower depths.

[0009] Document US2017106946A1 refers to a dynamically controlled hydrodynamic profile system for positioning and steering towed devices in a marine environment, especially seismic sources, receiver cables, and subsea equipment. The system uses multiple profile sections with adjustable angle of attack through controlled variation of tension in control cables, generating hydrodynamic lift and steering forces. Control can be automated by actuators and electronic systems, allowing precise separation, depth, and positioning of the array elements with less drag and greater operational efficiency.

[0010] Document WO2016127245A1 refers to a trawl net for commercial fishing having a net and an entrance opening defined by a head line, a tail line and side lines. The entrance opening is widened by a plurality of metallic hydrodynamic profile segments threaded onto one or more of the following lines: head line, tail line or side lines. Petition 870260061129, dated 06 / 22 / 2026, p. 13 / 173 4 / 63

[0011] US patent 6820568B1 refers to a hydrofoil apparatus comprising a first hydrofoil element with positive hydrodynamic tilting moments, a second hydrofoil element with positive hydrodynamic tilting moments, connecting means for joining the first and second hydrofoil elements so that they can be articulated around the connecting means, and a first and a second mooring element intended to allow the hydrofoil apparatus to be towed. SUMMARY

[0012] The embodiments described in this disclosure are directed to controlling an angle of attack for submerged airfoils of a marine assembly. Hydrodynamic airfoil sections can be coupled to each other by a pair of cables that converge at the connection points adjacent to the opposite ends of the airfoils. An actuator can be coupled to the cables and configured to adjust the tension in the cables, thereby altering an angle of attack of the airfoils.

[0013] In one embodiment, a marine ensemble is revealed. The marine assembly includes a cable configured to be towed by a ship and transport a payload through a marine environment. The marine assembly further includes a modular hydrodynamic profile system coupled to the cable and configured to bias the payload toward a target position. The modular hydrodynamic profile system includes a group of hydrodynamic profile sections collectively defining an angle of attack. The modular hydrodynamic profile system also includes a pair of connecting cables that support the group of hydrodynamic profile sections within the modular hydrodynamic profile system, and converge toward a connection point. Petition 870260061129, dated 06 / 22 / 2026, page 14 / 173 5 / 63

[0014] In another embodiment, the marine assembly may also include an actuator configured to alter a tension in one or both of the pair of through cables, thereby altering the angle of attack. In some cases, the group of hydrodynamic profile sections is a first group of hydrodynamic profile sections that defines a first angle of attack. The pair of through cables is a first pair of through cables. In this respect, the modular hydrodynamic profile system may further include a second group of hydrodynamic profile sections collectively defining a second angle of attack. The modular hydrodynamic profile system may further include a second pair of through cables that supports the second group of hydrodynamic profile sections within the modular hydrodynamic profile system, and converging towards the connection point.

[0015] In another embodiment, the second angle of attack is distinct from the first angle of attack. The marine assembly may also include an actuator configured to alter a tension in one or both of the first pair of guide wires, thereby altering the first angle of attack relative to the second angle of attack.

[0016] In another embodiment, the payload is an instrument configured to either collect data or transmit data. The target position may include at least one of a lateral position or a depth position.

[0017] In another embodiment, the cable may be a first cable towed by the ship. The marine assembly may also include a second cable towed by the ship. The modular hydrodynamic profile system may be disposed substantially between submerged portions of the first cable and the second cable.

[0018] In another embodiment, the cable is a splitter cable. The marine assembly may also include streamer cable configured for Petition 870260061129, dated 06 / 22 / 2026, p. 15 / 173 6 / 63 to be towed behind the separator cables. The payload may include seismic receivers driven by the streamer cable. The angle of attack can be configured to keep the seismic receivers at a desired depth.

[0019] In another embodiment, the cable is a lateral cable of the marine assembly under tension. The lateral cable includes an end portion positioned along an edge of the marine assembly. As such, the modular hydrodynamic profile system can be coupled with the lateral cable adjacent to the end portion.

[0020] In another embodiment, the marine assembly may also include a strut line connected to the lateral end portion of the cable. The modular hydrodynamic profile system may be connected to the strut line in front of the lateral cable.

[0021] In another embodiment, the cable is an upper cable. The marine assembly may also include a lower cable. In some cases, the upper cable and the lower cable cooperate to form a fishing trawl net mouth. The modular hydrodynamic profile system can be configured to increase the separation between the upper cable and the lower cable at the fishing trawl net mouth. Additionally or alternatively, the modular hydrodynamic profile system can be configured to spread the upper cable and the lower cable laterally.

[0022] In another embodiment, a modular hydrodynamic profile system for skewing a cable of a marine assembly is disclosed. The modular hydrodynamic profile system includes a group of hydrodynamic profile sections defining a hydrodynamic profile shape having a leading edge and a trailing edge. The modular hydrodynamic profile system further includes a first traverse cable extending through the group of hydrodynamic profile sections along the leading edge. The modular system of Petition 870260061129, dated 06 / 22 / 2026, page 16 / 173 7 / 63 The hydrodynamic profile also includes a second through cable extending through the group of hydrodynamic profile sections along the trailing edge. The modular hydrodynamic profile system also includes an actuator configured to adjust tension on one or both of the first or second through cables. The first through cable and the second through cable converge at attachment points adjacent to opposite ends of the group of hydrodynamic profile sections.

[0023] In another embodiment, the actuator may be a dynamic actuator configured to alter the tension in one or both of the first pair of through cables while submerged in a marine environment. Each of the connection points may be configured to couple a pair of through cables from another hydrodynamic profile modular system of the marine assembly to the first through cable and to the second through cable. In some cases, at least one of the connection points is defined by a ring and at least one of the pairs of through cables extends through the ring.

[0024] In another embodiment, the hydrodynamic profile section group defines a first duct along the leading edge of the hydrodynamic profile shape, and a second duct along the trailing edge of the hydrodynamic profile shape. The first through cable extends through the first duct. The second through cable extends through the second duct. The hydrodynamic profile section group can be configured to move within the hydrodynamic profile system along the first through cable and the second through cable.

[0025] In another embodiment, the actuator is coupled to the first cable. The actuator is a first actuator. The hydrodynamic profile system further comprises a second actuator coupled to the second cable. The first cable and the Petition 870260061129, dated 06 / 22 / 2026, page 17 / 173 8 / 63 second pass cables are integral portions of a continuous cable.

[0026] In another embodiment, a method for positioning a modular hydrodynamic profiling system in a marine assembly is disclosed. The method includes launching an assembly into a marine environment, the assembly comprising a cable configured to carry a payload and a modular hydrodynamic profiling system coupled to the cable. The method includes acquiring submerged positional data associated with the modular hydrodynamic profiling system. The method includes determining an adjustment parameter for the modular hydrodynamic profiling system by comparing the submerged positional data with an operational target. The method includes adjusting an angle of attack of a first group of hydrodynamic profiling sections of the modular hydrodynamic profiling system using the adjustment parameter.

[0027] In another embodiment, the group of hydrodynamic profile sections is supported inside the modular hydrodynamic profile system by a pair of connecting cables that converge towards a connection point. The method may further include controlling a tension in one or both of the first pair of connecting cables using a dynamic actuator. The dynamic actuator may be responsive to the adjustment parameter.

[0028] In another embodiment, a marine set is disclosed. The marine assembly includes a cable configured to be towed by a ship and a submerged payload through a marine environment. The marine assembly includes a modular hydrodynamic profile system coupled with the cable and configured to bias the submerged payload toward a target position. The modular hydrodynamic profile system includes a first group of hydrodynamic profile sections having a first angle of attack. The modular system Petition 870260061129, dated 06 / 22 / 2026, page 18 / 173 The 9 / 63 hydrodynamic profile also includes a second group of hydrodynamic profile sections having a second angle of attack. The first angle of attack is adjustable relative to the second angle of attack.

[0029] In another embodiment, the modular hydrodynamic profile system further comprises a first pair of connecting cables. The first group of hydrodynamic profile sections is supported in the modular hydrodynamic profile system by the first pair of connecting cables. The first pair of connecting cables converges towards a connection point, and the connection point couples the first group of hydrodynamic profile sections to a discrete assembly of the marine assembly.

[0030] In another embodiment, the marine assembly includes an actuator configured to alter a tension in one or both of the first pair of guide wires, thereby altering the first angle of attack. The actuator may be a dynamic actuator configured to alter the tension in one or both of the first pair of guide wires while submerged in the marine environment. In some cases, the actuator is a buckle coupled to one of the first pair of guide wires.

[0031] In another embodiment, the modular hydrodynamic profile system further comprises a second pair of connecting cables. The second group of hydrodynamic profile sections is supported in the modular hydrodynamic profile system by the second pair of connecting cables. The second pair of connecting cables converges towards the connection point. The second group of hydrodynamic profile sections is the discrete assembly coupled to the first group of hydrodynamic profile sections at the connection point.

[0032] In another embodiment, the cable is a separator cable. The marine seismic assembly also includes a streamer cable configured to be towed behind the separator cables. The payload includes Petition 870260061129, dated 06 / 22 / 2026, p. 19 / 173 10 / 63 seismic instruments are guided by the streamer cable. Both the first angle of attack and the second angle of attack are configured to keep the seismic receivers at a desired depth.

[0033] In another embodiment, the marine assembly includes a pair of diverters positioned at opposite ends of the separator cable and configured to spread the separator cable laterally when towed in the marine environment. The pair of diverters can be configured to provide a positive lift to the separator cables along a substantially vertical direction. The modular hydrodynamic profile system can be configured to provide a negative lift to the separator cable along the substantially vertical direction, the negative lift operating to counteract the positive lift provided by the pair of diverters.

[0034] In addition to the exemplary aspects and concretizations described above, other aspects and concretizations will become apparent by reference to the drawings and by studying the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The disclosure will be easily understood by the following detailed description together with the accompanying drawings, without qualifiers such as reference numbers designated as structural elements, and in which:

[0036] FIG. 1A represents a top plan view of a schematic illustration of an early example of a marine towed assembly;

[0037] FIG. 1B represents a rear elevation view of a schematic illustration of the towed marine assembly of FIG. 1A;

[0038] FIG. 2 represents an enlarged and partial rear view of a schematic illustration of an embodiment of Petition 870260061129, dated 06 / 22 / 2026, p. 20 / 173 11 / 63 marine towed assembly of FIG. 1A;

[0039] FIG. 3 represents an enlarged and partial view of the rear elevation of a schematic illustration of a port side of a towed seismic assembly with a system of hydrodynamic profile depressors supplied in the strut line and connected to the port side parapet by a clamp;

[0040] FIG. 4 represents a schematic illustration of a cable adjustment mechanism for a hydrodynamic profile system;

[0041] FIG. 5A represents a schematic illustration of another embodiment of a hydrodynamic profile system of the present disclosure;

[0042] FIG. 5B represents a schematic illustration of another embodiment of a hydrodynamic profile system of the present disclosure;

[0043] FIG. 5C represents a schematic illustration of another embodiment of a hydrodynamic profile system of the present disclosure;

[0044] FIG. 5D represents a schematic illustration of another embodiment of a hydrodynamic profile system of the present disclosure;

[0045] FIG. 5E represents a schematic illustration of an implementation of the hydrodynamic profile system of FIG. 5D;

[0046] FIG. 5F represents a schematic illustration of an implementation of the hydrodynamic profile system of FIG. 5D;

[0047] FIG. 6A represents a perspective view of a hydrodynamic profile system having a first angle of attack;

[0048] FIG. 6B represents a perspective view of the hydrodynamic profile system of FIG. 6AB having a second angle of attack;

[0049] FIG. 7 represents a modular profile system. Petition 870260061129, dated 06 / 22 / 2026, page 21 / 173 12 / 63 hydrodynamic of the present disclosure;

[0050] FIG. 8A represents an isometric view of a single section of a modular hydrodynamic profile depressor;

[0051] FIG. 8B represents a cross-sectional view of the modular hydrodynamic profile depressor section of FIG. 8A taken along line 8B-8B as indicated in FIG. 8A;

[0052] FIG. 9 represents a cross-sectional view of another embodiment of a hydrodynamic profile section;

[0053] FIG. 10 represents a cross-sectional view of another embodiment of a hydrodynamic profile section;

[0054] FIG. 11 represents a cross-sectional view of another embodiment of a hydrodynamic profile section;

[0055] FIG. 12 represents a flow diagram for a method of directing a hydrodynamic profile system of a marine assembly; and

[0056] FIG. 13 represents another embodiment of a marine set.

[0057] The use of cross-hatching or shading in the accompanying figures is generally provided to clarify the boundaries between adjacent elements and also to facilitate the legibility of the figures. Consequently, neither the presence nor the absence of hatching or shading indicates any preference or requirement for particular materials, material properties, element proportions, element dimensions, similarities of similarly illustrated elements, or any other characteristic, attribute, or property for any element illustrated in the figures accompanying the figures.

[0058] Furthermore, it should be understood that the proportions and dimensions (whether relative or absolute) of the various characteristics and elements (and collections and groupings thereof) and the limits, Petition 870260061129, dated 06 / 22 / 2026, page 22 / 173 13 / 63 separations, and positional relationships presented between them are provided in the accompanying figures merely to facilitate understanding of the various embodiments described herein and, consequently, cannot necessarily be presented or illustrated to scale, and are not intended to indicate any preference or requirement for an illustrated embodiment to the exclusion of the embodiments described with reference to them. DETAILED DESCRIPTION

[0059] The following description includes examples of systems, methods, and apparatus incorporating various elements of this disclosure. However, it should be understood that the disclosure described can be practiced in a variety of ways beyond those described herein.

[0060] The following disclosure describes systems, devices, and techniques related to controlling the orientation of a profile system of a marine assembly. The profile system can be used to control movements and / or maintain a position of various instruments, devices, assemblies, and so forth of the marine assembly. For example, a hydrodynamic profile system may include a group of hydrodynamic profile sections that cooperate to define a hydrodynamic profile shape having a leading edge and a trailing edge. The group of hydrodynamic profile sections may be coupled to the instruments of the assembly. When towed, the group of hydrodynamic profile sections may generate lift (e.g., including a lateral lift, a perpendicular lift, and so forth), due in part to an orientation or angle of attack of the hydrodynamic profile shape.In turn, this elevator can be used to move corresponding instruments coupled to the hydrodynamic profile system. The hydrodynamic profile sections that define the hydrodynamic profile shape can be coupled by a through cable and / or other mechanism that allows the sections. Petition 870260061129, dated 06 / 22 / 2026, page 23 / 173 14 / 63 hydrodynamic profile elements move relative to each other in a dynamic marine environment. However, such movement can limit the orientation of the hydrodynamic profile shape and / or another mechanism distorts the shape due to hydrodynamic forces.

[0061] The hydrodynamic profile system of the present disclosure can mitigate such obstacles, thus allowing the group of hydrodynamic profile sections to be arranged in a variety of orientations (e.g., a variety of angles of attack). The hydrodynamic profile system can be configured to generate different elevations for each orientation or angle of attack. For example, at a first angle of attack, the hydrodynamic profile system can generate a first elevator, while at a second angle of attack, the hydrodynamic profile system can generate a second elevator, distinct from the first elevator. The hydrodynamic profile system can be coupled with instruments from the marine array, as described herein, and thus each of the first elevator, the second elevator, or another elevator can cause the coupled instruments to be directed or positioned in a desired manner.The orientation or angle of attack can be adjusted while the hydrodynamic profiling system is being towed. Consequently, the hydrodynamic profiling system can be adapted to the dynamic conditions of a marine environment and / or to specific instruments and requirements of the marine assembly.

[0062] To facilitate the foregoing, the hydrodynamic profile system of the present disclosure may be configured to adjust a tension in one or more cables supporting the hydrodynamic profile sections within the marine assembly. For non-limiting illustrative purposes, the hydrodynamic profile system may include a group of hydrodynamic profile sections that are arranged adjacent to one another to define the hydrodynamic profile shape. Petition 870260061129, dated 06 / 22 / 2026, page 24 / 173 15 / 63 A pair of connecting cables can extend through one or more, or each, of the group of hydrodynamic profile sections, thereby coupling the hydrodynamic profile sections to each other and allowing relative movement between adjacent hydrodynamic profile sections.

[0063] When deployed, the pair of through cables may have a tension that generally allows the hydrodynamic profile sections to orient themselves into an equilibrium position. The tension in one or both through cables can be adjusted in order to modify the orientation or angle of attack, and thus modify a lift generated by the hydrodynamic profile system. For example, one or more actuators may be coupled with the pair of through cables. The actuator may be configured to increase a tension in one or both pairs of through cables. As the tension is increased, the movement of the hydrodynamic profile sections relative to each other may be decreased, and the group of adjacent hydrodynamic profile sections may collectively orient themselves for, for example, an increased attack.The increased angle of attack can generate greater lift, and thus the hydrodynamic profile system can exert a greater force on the instruments attached to the array, which can help to orient or depress the instruments to a desired position.

[0064] In turn, the hydrodynamic profile system can also function to decrease the angle of attack by reducing the tension in the pair of connecting cables. For example, the actuator can also operate to reduce the tension on one or both sides of the pair of connecting cables. The reduced tension can allow the hydrodynamic profile sections to return to the equilibrium position, thus resulting in a decrease in the angle of attack. The decrease in the angle of attack can generate less lift, and, therefore Petition 870260061129, dated 06 / 22 / 2026, page 25 / 173 In mode 16 / 63, the hydrodynamic profile system can exert less force on the instruments attached to the array. This can help to drive or depress the instruments toward a desired position.

[0065] The actuator, as described herein, can be substantially any suitable component that is used to adjust a tension in a cable. In one embodiment, the actuator can be a mechanical component, such as a buckle. The buckle can be manually adjusted, for example, before the assembly is deployed, in order to set a desired angle of attack of the profiles. Additionally or alternatively, the hydrodynamic profile system can include various dynamic actuators, such as a pneumatic, hydraulic or electromechanical controller that is used to modify a tension in the pair of connecting cables. It will be appreciated, however, that other actuators are possible and contemplated within the scope of this disclosure.

[0066] In some cases, the actuator can be configured to adjust cable tension while the assembly is deployed in a marine environment. For example, the actuator can be configured to receive a signal from another source, such as a vessel towing the assembly, or another remote source. The actuator can use the signal to adjust cable tension. For example, in a first configuration, the signal might indicate a first desired orientation, and the actuator might adjust the cable tension so that the hydrodynamic profile section matches the first desired orientation. Similarly, in another configuration, the signal might indicate a second desired orientation, and the actuator might adjust the cable tension so that the hydrodynamic profile section matches the second desired orientation. Petition 870260061129, dated 06 / 22 / 2026, page 26 / 173 17 / 63

[0067] The actuator can therefore be used for dynamic or real-time, on-the-fly positioning of the marine instrument array. Continuing the non-limiting illustration, the first desired orientation of the hydrodynamic profile section group may correspond to a target lift generated by the hydrodynamic profile section to position instruments of the array at a desired location (or submerged depth). Conditions may change in the marine environment, for example, due to unpredictable hydrodynamic forces, marine debris, or obstacles, and so on, including changes in course for the vessel itself. It may thus be desirable to reposition the instruments of the array. Presented differently, it may be desirable to exert different forces on the instrument in order to account for changing conditions.

[0068] The second desired orientation in the illustration above may correspond to such a different force, and thus the actuator may help to account for the change in condition. In some cases, the assembly may use multiple sensors to detect changing conditions. The actuator may be coupled with these sensors, and thus automatically compensate for the changing condition by altering the tension in the coupled lead wires.

[0069] The profile system of the present disclosure can serve a variety of functions in a marine assembly, as described herein. For example, in one configuration, the hydrodynamic profile sections can define a hydrodynamic profile shape that extends substantially laterally through a marine environment. When oriented at a negative angle of attack, the hydrodynamic profile sections can generate a negative elevation that biases them deeper into a marine environment. The hydrodynamic profile section in such a configuration can therefore, Petition 870260061129, dated 06 / 22 / 2026, page 27 / 173 18 / 63 function as a depressor that operates to maintain coupled instruments at a desired depth. As another example, in a second configuration, the hydrodynamic profile sections can define a hydrodynamic profile shape that extends substantially perpendicularly through the marine environment. When oriented at an angle of attack, the hydrodynamic profile section can generate an elevator that tilts laterally to the hydrodynamic profile sections in the marine environment. The hydrodynamic profile section in such a configuration can therefore function as a steering or positioning device that works to cause the coupled instruments to move to a desired position. In other configurations, other elevators may be possible, including a configuration where the hydrodynamic profile sections can generate a combination of perpendicular and lateral elevators.

[0070] In order to facilitate the coupling of the profile system described herein to various instruments of this set, the connecting cables may converge at a connection point. For example, the group of hydrodynamic profile sections may be arranged adjacent to one another to define a hydrodynamic profile shape having a first end (e.g., a first longitudinal end) and a second end (e.g., a second longitudinal end). The connecting cables may extend through ducts defined in one or more of the hydrodynamic profile sections and converge to one another at each of the first and second ends. In particular, the pair of connecting cables may converge to one another at a first connection adjacent to the first end of the hydrodynamic profile shape. Similarly, the pair of connecting cables may converge to one another at the second connection adjacent to the second end. Petition 870260061129, dated 06 / 22 / 2026, page 28 / 173 19 / 63 end of the hydrodynamic profile form. The convergence of the cables can help regulate the tension in the connecting cables, and therefore allow for more precise or accurate control of the angle of attack of the hydrodynamic profile form.

[0071] The pair of through cables may converge to a connection point adjacent to the end of a hydrodynamic profile group section, and as such, define a triangular shape with one of the hydrodynamic profile sections. As described herein, the triangular shape may change according to the magnitude of the tension in one or both of the through cables of the hydrodynamic profile system. For example, the actuator may be associated with a through cable adjacent to a leading edge of the hydrodynamic profile sections, and when in a neutral or unintuitive state, the through cables may form a triangular shape with the nearest hydrodynamic profile section that substantially resembles a right triangle (e.g., with a substantially ninety-degree angle formed between the leading edge of the through cable and the nearest hydrodynamic profile section).As the actuator works to decrease the tension on the leading edge of the cable, thus increasing the tension on the trailing edge of the cable (e.g., to adjust the angle of attack), the triangular shape will change, such as changing to a shape substantially similar to an isosceles triangle. Furthermore, the actuator can operate to increase or decrease the tension, and further manipulate the angle defined by the leading edge of the cable and the most terminal hydrodynamic profile section. This dynamic triangular shape can help facilitate fine control of the angle of attack, also allowing the angle of attack of the hydrodynamic profile section to be modified relative to other modules of a modular hydrodynamic profile assembly. Petition 870260061129, dated 06 / 22 / 2026, page 29 / 173 20 / 63

[0072] For example, the convergence of the connecting cable can allow the hydrodynamic profile system to be an assembly of a modular hydrodynamic profile system. For example, as described herein, a first group of hydrodynamic profile sections can define a first hydrodynamic profile shape, and a second group of distinct hydrodynamic profile sections can define a second hydrodynamic profile shape. The first group of hydrodynamic profile sections can be coupled to the second group of hydrodynamic profile sections by one or more pairs of connecting cables that converge at a connection point positioned substantially between the distinct groups of profiles. In this way, distinct groups of hydrodynamic profile sections can be chained to one another through an extension of the marine assembly.This can also allow for more accurate or precise control of tension in the cables, since the tension can be adjusted in each individual module (e.g., adjacent to each group of distinct hydrodynamic profile sections).

[0073] Adjusting the tension in the connecting cables of adjacent individual groups of hydrodynamic profile sections can allow for distinct angles of attack of hydrodynamic profile sections throughout the modular system. For example, a first group of hydrodynamic profile sections may have a first angle of attack based on a first tension in the connecting cable supporting the first hydrodynamic profile sections in the assembly. Furthermore, a second group of hydrodynamic profile sections may have a second angle of attack based on a distinct second tension in the connecting cable supporting the second hydrodynamic profile section in the assembly. As such, a first part of the modular hydrodynamic profile system (e.g., the first group of hydrodynamic profile sections) may generate a first lift, while a Petition 870260061129, dated 06 / 22 / 2026, page 30 / 173 21 / 63 The second part of the modular hydrodynamic profile system (e.g., the second group of hydrodynamic profile sections) can generate a second distinct lift. This can allow, in some embodiments, the modular hydrodynamic profile system to extend over a substantial portion of the assembly, and generate specific or targeted lifts to specific areas of the assembly. And, as described herein, the tension can be dynamically adjusted in flight, and thus each part of the modular hydrodynamic profile system can be configured to compensate for the dynamic conditions of an associated area within the assembly.

[0074] According to the embodiments described herein, the profile system, modular profile system, and so forth, can be implemented with a marine array. A marine array can be towed through a marine environment by a vessel. In some embodiments, the marine array can be a seismic array. In general, a seismic array may include multiple sources and streamers used to study rock strata and other structures below the ocean surface, or other bodies of water. One or more marine vessels are typically used to tow the source and / or receiver arrays in order to obtain relevant geological data covering a desired area of ​​the ocean floor surface. For example, a single surface vessel may simultaneously tow a seismic source array and a seismic streamer array, or different vessels may be used to tow separate source and receiver arrays.Alternatively, a set of towed sources can be used in conjunction with stationary receivers, for example, a set of ocean floor nodes, or with ocean floor cables deployed on the seabed.

[0075] It will be appreciated that a seismic set is an application Petition 870260061129, dated 06 / 22 / 2026, p. 31 / 173 22 / 63 of a marine assembly. In other embodiments, a marine assembly may be, or refer to, substantially any collection of components that are towed by a vessel through a body of water. For example, a marine assembly may include a fishing trawl net that includes cables, nets, and / or other components configured to capture fish in the marine environment. The modular hydrodynamic profile system of the present disclosure may be coupled with fishing trawl net cables (e.g., top cable and bottom cable to widen the vertical opening of the trawl net, and port cable and starboard cable to widen the lateral opening of the trawl net) in order to facilitate its operation. This may include using the lift generated by the modular hydrodynamic profile system to increase (or otherwise manipulate) the mouth size of the fishing trawl net.One or more dynamic actuators can control one or more modular hydrodynamic profile systems connected to the cables that form the mouth of the fishing trawl net, and direct the fishing trawl net upwards or downwards and from side to side. The modular profile system can also be used to alter the rate of descent and ascent of the trawl net through the marine environment to increase or decrease deployment and recovery times.

[0076] Other marine assemblies are contemplated here. In some cases, the marine assembly may be a towed payload used in a military application. As another example, the marine assembly may be a towed instrument or other payload used in oceanographic and related studies. Thus, although the following figures may describe the modular profile system in the context of a particular embodiment of a marine seismic assembly, this is for illustrative purposes. As such, any discussion of a modular hydrodynamic profile system, hydrodynamic profile section, Petition 870260061129, dated 06 / 22 / 2026, p. 32 / 173 23 / 63 and so on, with respect to a particular embodiment of a marine assembly, may apply to other embodiments of marine assemblies, and should not be interpreted as limiting.

[0077] Reference will now be made to the accompanying drawings, which help to illustrate various features of the present disclosure. The following description is given for illustrative and descriptive purposes. Furthermore, the description is not intended to limit the inventive aspects to the forms disclosed in this disclosure. Consequently, proportionate variations and modifications with the following teachings, and skill and knowledge of the relevant technique, are within the scope of the present inventive aspects.

[0078] A realization of a marine seismic set 100 is represented in FIGS. 1A and 1B. The seismic assembly 100 is towed by a marine vessel 102. A series of cables, ropes, or other lines may be connected to the marine vessel 102. For example, an umbilical cable 104 with acoustic signal generators (e.g., air guns) may be towed directly behind the marine vessel 102. A pair of towing ropes 106 or cables may be laid to port and starboard from the stern of the vessel 102. A cross cable 108 may extend between and connect to the towing ropes 106 adjacent to the stern ends of the towing ropes 106. A number of streamer cables 110 may be connected to the cross cable 108 at various locations along the length of the cross cable 108 between the towing ropes 106.In some embodiments, the streamer cable 110 may be evenly spaced from each other along the length of the streamer cable 110 along the length of the crossover cable 108. In a typical embodiment, there may be up to 18 streamer cables 110 and they may be spaced anywhere between 10m and 100m or more. Respective tail buoys 111 may be attached to the ends of each of them. Petition 870260061129, dated 06 / 22 / 2026, p. 33 / 173 24 / 63 110 streamer cables that can help maintain the position of the 110 streamer cable, providing a visual marker for the assembly, and so on.

[0079] The cross cable 108 may extend beyond the streamer cable 110, further to port and further to starboard, to attach to the towing ropes 106. These lateral sections of the cross cable 108 may be referred to as strut lines 114. In some embodiments, the strut lines 114 may be separated from ropes or cables that connect and extend between the lateral ends of the cross cable 108 and the towing ropes 106.

[0080] The Paravanes 112 may also be attached to the towing ropes 106 or adjacent to the connection between the towing ropes 106 and the anchor lines 114 on each port and starboard side. The Paravanes 112 are winged hydrofoils that move outward in the water in an oblique direction to the direction of travel of the marine vessel 102, thus providing a lateral spread to the cross cable 106 and the streamer cable 110 connected to it. In other configurations, alternative spreading devices may be used to maintain the separation of the streamer cable 110, including aluminum wings, as described in US Patent Application Publication US20170299747A1.

[0081] A signal cable 116 may extend from the marine vessel 102 on one side of the assembly 100 to connect to the crossover cable 108 and return signals received by the sensors 111 on the streamer cable 110. On an opposite side of the assembly 100, a recovery rope 118 may extend from the marine vessel 102 and connect with the crossover cable 108 adjacent to the last streamer 110. Surface floats 117 may be connected to the crossover cable 108 at or adjacent to its lateral ends by means of a cable with a length corresponding to a desired depth. Petition 870260061129, dated 06 / 22 / 2026, p. 34 / 173 25 / 63 of streamer cable 110. Surface fluctuations 117 act to ensure that the crossover cable 108, and therefore streamer cable 110, does not submerge too deeply when the assembly 100 is towed.

[0082] Unfortunately, the port and starboard ends of the cross cable 108, and thus the streamer cable 110 connected to it, cannot reach a desired depth below the surface due to the pull of the paravanes 112 on the anchor lines 114. The paravanes 118 remain on the water surface and thus pull the lateral ends of the cross cable upwards as well as laterally outwards.

[0083] To neutralize the effect of paravanes 212 on the crossover cable 208, a positioning device or depressor 220 designed to provide downward lift may be connected to the cross cable 208, the strut line 214, or both, as shown in FIG. 2. The depressor 220 may be composed of a number of profiles 222, pivotally fixed to the cross cable 208, or to the strut line 214. The collection of profiles 222 that form the depressor 220 are referred to herein as a modular profile depressor. As shown in FIG. 2, modular hydrodynamic profile depressors 220 may fill the entire length of the strut line 214. Alternatively, the modular hydrodynamic profile depressor 220 may only fill a portion of the strut line 214, and may be situated either laterally outward closer to the paravanes 212, or further inward closer to the streamer cable 210.As mentioned above, the modular hydrodynamic profile 220 can also be positioned on the cross cable 208, inside on the port and starboard sides – closer to the streamer cable 210. The location of the modular hydrodynamic profile 220 depressor can be selected based on a number of factors, including the amount of downward lift generated by the modular profile depressor. Petition 870260061129, dated 06 / 22 / 2026, page 35 / 173 26 / 63 hydrodynamic 220, the separation distance of the streamer cable 210, streamer cable 210, and cross cable 208, and the lifting force generated by the paravanes 212, among other factors.

[0084] In addition to the depth control discussed, as shown in FIG. 3, a modular hydrodynamic profile depressor 320 deployed on the strut line 314 also provides lift assistance to the paravanes 312 connected by a head 313 to the intersection of the tow lines 304 and strut lines 314. That is, since the modular hydrodynamic profile depressor 320 induces a downward catenary on the strut line 314, as shown in FIG. 3, a first component 362 of the lift force 360 ​​acts downward as discussed above, but a second component 364 of the lift force 360 ​​also acts horizontally (i.e., off-board). This horizontal lift assistance from the second component 364 provided by the modular depressor 320 means that the existing standard paravanes 312 will now be able to spread the seismic assembly 310 wider than previously possible.Alternatively, the configuration including the modular hydrodynamic profile depressor 320 on the support line 314 can achieve the same spread, but with a shorter displacement behind the towing vessel 310. In another implementation, the same spread and compensation can be achieved, but a more efficient configuration for the brake 313 that secures the parapets 312 can be used, thus reducing the vessel's fuel consumption.

[0085] In addition to using a series of depressor sections in the strut lines to achieve depression forces to submerge the streamer heads to the desired depth for seismic assemblies, the modular blade depressor can provide a number of other features and advantages. Petition 870260061129, dated 06 / 22 / 2026, p. 36 / 173 27 / 63

[0086] The modular hydrodynamic profile depressor can be readily installed on existing equipment in the water, such as, for example, by threading the individual sections of the depressor onto existing strut lines between paravanes and external streamer cable heads. Modular profile depressors can also be installed on numerous other existing ropes.

[0087] The modular hydrodynamic profile depressor can be placed on the side of the vessel, or by the gun rail, and will then self-orient and generate lift without operator intervention. Handling, deployment, and recovery operations are essentially hands-free, without the need for special davits or dedicated winches or cranes. It is also compact and can be easily and efficiently stored on board the vessel.

[0088] In other embodiments, a hydrodynamic profile system can be used to generate lift along a lateral direction. This can allow a hydrodynamic profile system to guide or position a component of the marine assembly. For illustrative purposes, a schematic illustration of a 420 hydrodynamic profile wing dynamic system, composed of a number of adjacent 430 hydrodynamic profile sections, is shown in FIG. 4. The 420 hydrodynamic profile wing dynamic system can generally extend perpendicularly to a marine environment, and generate lift that is used to steer components of the marine assembly.

[0089] To facilitate the preceding, the hydrodynamic wing system 420 is shown in FIG. 4 as including a representative of the adjustment mechanism 450. The adjustment mechanism 450 may include various components that can be used to manipulate the hydrodynamic wing system 420, Petition 870260061129, dated 06 / 22 / 2026, page 37 / 173 28 / 63 such as manipulating an orientation of the hydrodynamic profile wing system 420 to generate a target lift when towed through the marine environment. In one embodiment, the adjustment mechanism may include a buckle 452 and a pulley 454, ratchet, winch, or similar cable guide, and the power mechanism may be mounted on the flotation apparatus 418, for example, between a control cable 438 and a stern anchor point 458 on the rear or aft section of the flotation apparatus 418 (in the direction of the trailing edge of the hydrodynamic profile sections 430). The cable 436 and the through cable 434 extending through the hydrodynamic profile sections 430 are mounted to an anchor 456 fixed to the forward section of the flotation apparatus 418 (in the direction of the leading edge of the hydrodynamic profile sections 430).

[0090] The 450 adjustment mechanism can be configured to adjust either the 436 cable forward or the 438 cable backward; both embodiments are included. Another option is to use a 450 adjustment mechanism that provides differential adjustments for both the 436 and 438 cabs; for example, shortening one cab while extending the other at the same time. In some designs, a single control cable may be used, extending from the cable anchor 456 downwards along a section of cable 436, then passing through a cable return or winding or flexing around a cable connector 429 attached to a submerged cable 444, and returning upwards along a section of cable 438 to the forward cable anchor 458 via pulley 454. Alternatively, separate front and rear control cables 436, 438 may be provided, for example, individually attached to the submerged cable connector 429.Submerged cable 444 can be supplied as a towing cable for a streamer cable 448, or as an umbilical for a stock gun array. Petition 870260061129, dated 06 / 22 / 2026, p. 38 / 173 29 / 63

[0091] A control device 459 for the adjustment mechanism 450 may be located at the upper or lower end of the hydrodynamic airfoil wing system 420, for example, inside the flotation apparatus 418. Suitable control devices 459 include a processor, memory, and software components configured to direct the adjustment mechanism 450 to selectively vary the length and / or tension in the cables 436, 438, to regulate the lift and steering forces generated by the hydrodynamic airfoil wing system 420, altering the angle of attack along individual hydrodynamic airfoil sections 430. For example, the control device 459 may be configured to control an electric motor or similar drive in order to drive the adjustment mechanism 450, providing automated steering by adjusting the relative length and tension in the control cables 436, 438, forward and backward.Other control options include, but are not limited to, hydraulic and pneumatic ram or piston mechanisms, electric winch drives, and motor-driven rack and pinion arrangements. For example, in some cases, control systems and configurations such as those described in U.S. Patent Application Publication No. US20170106946A1 may be used to facilitate the tensioning of the cables described in relation to FIG. 4.

[0092] In the context of a seismic survey as described above, several seismic power source devices and / or several sensor nodes may be connected along the length of the cables used and towed behind the marine vessel. Each of the cables, or the seismic equipment connected to the cables, may have an associated steering device in order to adjust the position of the cable or seismic devices within the water. In some implementations, it may be very important that the towed marine equipment, such as Petition 870260061129, dated 06 / 22 / 2026, p. 39 / 173 30 / 63 such as cables with seismic equipment, closely follow a predetermined course (e.g., in order to accurately map a subsurface formation). Furthermore, if multiple cables are installed behind a marine vessel, it may be important to maintain a constant separation distance between the cables. To meet these needs, steering mechanisms can be connected to each cable or, alternatively, connected to the equipment towed by the cable.

[0093] The 420 hydrodynamic airfoil wing systems are just one exemplary implementation of a steering mechanism that can be used to steer position cables, seismic power sources, sensor nodes, buoys and floats in the seismic array, etc. There are other steering mechanisms for attaching to such sensor array components. These may include paravanes, hydrofoils, rudders, wings, elevators, and various other devices. The orientations of each of these devices while being towed through the water can be adjusted for steering. Such adjustments can be made by increasing or decreasing the tension on the control cables (i.e., making them tighter or looser), coupling actuators to physically move a steering element; coupling motors to drive rotating elements, etc.In each case, the steering mechanisms are controlled by calculated signals to appropriately alter their orientation to maintain a proper course for the elements of the seismic assembly within the water. These signals are determined by sophisticated navigation and control systems that work in conjunction with the navigation of the maritime vessel, in order to ensure that the elements of the seismic assembly remain on course and maintain adequate separation distances between adjacent elements.

[0094] FIGS. 5A - 7 describe system realizations of Petition 870260061129, dated 06 / 22 / 2026, p. 40 / 173 31 / 63 profiles of the present disclosure. In particular, FIGS. 5A - 7 represent embodiments of a profile system that defines a hydrodynamic profile shape group configured to have an adjustable angle of attack or orientation. In this respect, the hydrodynamic profile system or systems of the present disclosure can generate a variety of distinct elevations based on the adjustable angle of attack of the hydrodynamic profile shape group. It will be appreciated that the profile system and configurations described with respect to FIGS. 5A - 7 can be used with any of the marine assemblies described herein. In this respect, the profile system described with respect to FIGS. 5A - 7 can be used as, or define a component or assembly of, a modular hydrodynamic profile depressor (e.g., depressor 220 of FIG. 2), a hydrodynamic profile wing system (e.g., hydrodynamic profile wing system 420 of FIG. 3), or a hydrodynamic profile wing system (e.g., hydrodynamic profile wing system 420 of FIG. 420).4), and so on, as may be appropriate for a given application.

[0095] With reference to FIG. 5A, a tensioned cable 580 is shown. The tensioned cable 580 can be any suitable cable from a marine assembly, such as a cable that is in tension and forming a component of a seismic assembly, or fishing trawl net, among other applications. The tensioned cable 580 is shown towed along a towing direction 590. At a first end, the tensioned cable can be tensioned in a first tensioning direction 582a. At a second end, opposite the first end, the tensioned cable can be tensioned in a second tensioning direction 582b.

[0096] FIG. 5A also shows a hydrodynamic profile system 500, which is further described in different deployment variations in FIGS. 5B-5F. The hydrodynamic profile system 500 can be coupled with, or substantially replace, the tensioned cable 580. This can Petition 870260061129, dated 06 / 22 / 2026, page 41 / 173 32 / 63 allow the hydrodynamic profile system to provide lift to the portion of the marine assembly associated with the tensioned cable 580. The hydrodynamic profile system 500 may include a series of hydrodynamic profile sections 504. Each hydrodynamic profile section 504 has a span, a chord, and a hydrodynamic profile cross-section, which may be a standard hydrofoil cross-section, as shown herein and described further with respect to FIGS. 8A and 8B, or may be any other desired hydrodynamic profile cross-section, such as NACA, Eppler, Gottingen, or any other custom hydrodynamic profile cross-section suitable for the desired application.

[0097] Hydrodynamic profile sections 504 can be arranged or stacked side by side. In this respect, hydrodynamic profile sections 504 can be a group of hydrodynamic profile sections that collectively define a hydrodynamic profile shape. The hydrodynamic profile shape can have a leading edge 512 and a trailing edge 508. The hydrodynamic profile shape of the hydrodynamic profile system 500 can be arranged in a variety of orientations or angles of attack relative to a flow direction, for example, as described in greater detail below with respect to FIGS. 6A and 6B. This can cause the hydrodynamic profile system 500 to generate an elevator that is used to manipulate components of a marine assembly (e.g., seismic cables, receivers, etc.) in order to drive, move, position, and / or depress the components, as may be appropriate for a given application.

[0098] In the embodiments of FIGS. 5A-5F, the hydrodynamic profile sections 504 are coupled to one another using a pair of connecting cables, such as a first connecting cable 526a and a second connecting cable 526b. The first connecting cable Petition 870260061129, dated 06 / 22 / 2026, p. 42 / 173 33 / 63 526a and the second through cable 526b can extend through the hydrodynamic profile sections 504, thus supporting the hydrodynamic profile sections 504 within the hydrodynamic profile system 500. As an example, the hydrodynamic profile sections 504 can define ducts that extend through the hydrodynamic profile sections 504. The ducts can extend along and just past each of the leading edges 512 and just past the trailing edge 508 of the hydrodynamic profile shape. The first through cable 526a and the second through cable 526b can therefore be positioned inside and threaded through the ducts of the hydrodynamic profile section 504. In turn, the first through cable 526a and the second through cable 526b can be coupled to another component or assembly of a marine assembly, and thus help to support the hydrodynamic profile sections 504 with the assembly.

[0099] In the embodiment of FIGS. 5A-5F, the first connecting cable 526a and the second connecting cable 526b can couple the hydrodynamic profile sections 504 to the connection points within a marine assembly. In a particular embodiment, FIG. 5A shows a first connection point 550 and a second connection point 552. The first connection point 550 and / or the second connection point 552 can be a hook, a joint, a pulley, a fixed link, and so on, of the marine assembly; however, other configurations are possible. The connection points 550, 552 can generally define a module of a modular hydrodynamic profile system (for example, as described in greater detail with respect to FIG. 7) and, as such, other groups of hydrodynamic profile sections 504 can be connected to each other at the connection points 550, 552.

[00100] Each of the connection points 550, 552 can be Petition 870260061129, dated 06 / 22 / 2026, p. 43 / 173 34 / 63 coupled with distinct connecting cables. This can allow the hydrodynamic profile system to be coupled to virtually any other cable, rope, assembly, and so on, of the marine assembly, including components of the seismic assembly, a fishing trawl net, and so on. For example, FIG. 5A shows a first connecting cable 554a and a second connecting cable 554b that are coupled to the respective connection points 550, 552. In turn, the first connection of cable 554a and the second connection of cable 554b can be coupled to other components of the marine assembly, according to the embodiment described herein.

[00101] In the embodiment shown in FIGS. 5A-5F, the through cables can converge at the connection points adjacent to the opposite ends of the hydrodynamic profile sections. For example, the first through cable 526a and the second through cable 526b can converge towards the first connection 550. Also, the first through cable 526a and the second through cable 526b can converge towards the second connection 552. This can allow for more precise or accurate control of the orientation of the hydrodynamic profile sections.

[00102] For example, the first through cable 526a may extend from the first junction point 550 to the second junction point 552. Between the first junction point 550 and the second junction point 552, the first through cable 524a may extend through a duct of hydrodynamic profile sections 504 (for example, a duct defined along and just below the leading edge 512). The second through cable 526b may extend from the second junction point 550 to the second junction point 552. Between the first junction point 550 and the second junction point 552, the second through cable 526b may extend through a duct of hydrodynamic profile sections 504 (for example, a duct Petition 870260061129, dated 06 / 22 / 2026, page 44 / 173 35 / 63 defined along and just beyond the vanishing edge 508).

[00103] Consequently, a position or orientation of each hydrodynamic profile section 504 can be defined (or limited) by the connecting cables 526a, 526b. For example, each hydrodynamic profile section 504 can be subjected to hydrodynamic forces and thus move relative to each other. When the connecting cables 526a, 526b are substantially slack or allow movement between each of the hydrodynamic profile sections 504, each hydrodynamic profile section 504 can migrate separately from each other. However, by applying tension to one or both cables 526a, 526b, the cables 526a, 526b can form a triangular shape that can act to restrict the movement of the hydrodynamic profile sections 504 relative to each other. The increased tension can also help each section of hydrodynamic profile 504 to stack adjacent to one another, for example, to define the shape of a hydrodynamic profile having a leading edge 512 and a trailing edge 508.In some cases, one or both cables 526a, 526b may be tensioned in order to define a catenary in the form of a hydrodynamic profile.

[00104] In certain embodiments, the tension may be increased in one or both of the guide cables 526a, 526b in order to adjust an angle of attack of the hydrodynamic profile shape. As a possibility, a tension in one or both of the guide cables 526a, 526b may be increased, which, in turn, may increase an angle of attack of the hydrodynamic profile shape defined by the hydrodynamic profile sections 504. The increase in the angle of attack may generally cause the hydrodynamic profile system 500 to generate additional lift. As such, the tension in one or both of the guide cables 526a, 526b (or any other cable or ropes supporting the hydrodynamic profile sections 504) Petition 870260061129, dated 06 / 22 / 2026, p. 45 / 173 36 / 63 within the matrix) can be adjusted in order to manipulate the lift generated by the 500 hydrodynamic profile system.

[00105] To facilitate the foregoing, FIGS. 5B-5F describe embodiments in which the first and second through cables 526a, 526b converge at the connection points 550, 552, which are adjacent opposite ends of the hydrodynamic profile system 500. The convergence of the through cables 526a, 526b toward the connection points 550, 552 can enable an actuator to control the tension in one or both of the through cables 526a, 526b in a precise, and potentially dynamic, manner.

[00106] With particular reference to FIG. 5B, tensioned cable 580 is arranged substantially parallel to, and connected with, hydrodynamic profile sections 504. In this respect, the hydrodynamic profile system can be piggy-backed onto an existing high-tension cable (e.g., tensioned cable 580) for installation in a marine assembly, including any of the seismic assemblies, fishing trawls, military vessels, and so forth, described herein.

[00107] For example, tensioned cable 580 can be a cable of a marine assembly, and hydrodynamic profile system 500 can be coupled with tensioned cable 580 to provide lift in a target region of the assembly. As shown in FIG. 5B, the first link of cable 554a can be coupled with tensioned cable 580 at a first end. Furthermore, the second link of cable 554b can be coupled with tensioned cable 580 at a second end. In this way, hydrodynamic profile sections 504 can generate a lift, as described herein, which in turn lifts tensioned cable 580 in a specified manner. The lift can therefore be delivered to a specific region of the marine assembly by connecting hydrodynamic profile system 500 to structures and Petition 870260061129, dated 06 / 22 / 2026, page 46 / 173 37 / 63 existing components of the assembly, instead of modifying the assembly components to accommodate the hydrodynamic profile system.

[00108] With reference to FIG. 5C, another embodiment of the hydrodynamic profile system 500 is shown in which the hydrodynamic profile system 500 includes an actuator 524. The actuator 524 can be used to adjust a tension in one or both of the first through cables 526a, or in the second through cable 526b, which, in turn, can adjust an angle of attack of a hydrodynamic profile shape defined by the hydrodynamic profile section 504. The actuator 524 is shown in FIG. 5C as coupled to or positioned on the first through cable 526a at a first end 516 of the hydrodynamic profile system 500. The positioning of the actuator 524 on the first through cable 526a can help to orient the leading edge 512 in one or more directions in order to generate a target lift for the hydrodynamic profile system 500.In other cases, the actuators may be arranged in various other positions of the hydrodynamic profile system 500, including being positioned on the second through cable 526b, for example, as shown with another actuator 524' (shown in dashed line).

[00109] The actuator 524 may be substantially any suitable component that is used to adjust a tension in a cable. For example, the actuator may be a mechanical component, such as a buckle. The buckle may be manually adjusted, for example, before the assembly is deployed, in order to set a desired angle of attack of the profiles. Additionally or alternatively, the hydrodynamic profile system may include various dynamic actuators, such as a pneumatic or electromechanical controller that is used to modify a tension in the pair of through cables, for example, as described in the Application Publication. Petition 870260061129, dated 06 / 22 / 2026, page 47 / 173 38 / 63 of U.S. Patent No. 20170106946A1. It will be appreciated, however, that other actuators are possible and contemplated within the scope of this disclosure.

[00110] In some cases, the actuator can be configured to adjust cable tension while the assembly is deployed in a marine environment. For example, the actuator can be configured to receive a signal from another source, such as a vessel towing the assembly, or another remote source. The actuator can use the signal to adjust cable tension. For example, in a first configuration, the signal might indicate a first desired orientation, and the actuator might adjust the cable tension so that the hydrodynamic profile section matches the first desired orientation. Similarly, in another configuration, the signal might indicate a second desired orientation, and the actuator might adjust the cable tension so that the hydrodynamic profile section matches the second desired orientation.In this respect, actuator 524 may, more broadly, be a component of the adjustment mechanism (e.g., adjustment mechanism 450 of FIG. 4) or other steering or positioning system described herein.

[00111] With reference to FIG. 5D, another embodiment of the hydrodynamic profile system 500 is shown. In the embodiment of FIG. 5D, the actuator 524 is shown connected to the second connecting cable 554b. It will be appreciated that the second connecting cable 554b is a continuation of one of the first or second connecting cables 526a, 526b. By connecting the actuator 524 to the second connecting cable 554b, the actuator 524 can be positioned outside the triangle formed by the first and second connecting cables 526a, 526b. By positioning the actuator outside the triangle formed by the connecting cables 526a, 526b, an angle of attack of the hydrodynamic profile section 504 can be manipulated. Petition 870260061129, dated 06 / 22 / 2026, p. 48 / 173 39 / 63 in a controlled manner, in certain embodiments. For example, in the embodiment of FIG. 5D, the actuator 524 functions as an external tensioning member and, therefore, operates to control an angle of attack of the hydrodynamic profile section 504 in a manner different from the configuration of the internal tensioning member described herein.

[00112] To facilitate the foregoing, FIGS. 5E and 5F provide further implementation details of the system shown in FIG. 5D. For example, FIG. 5E shows the hydrodynamic profile system 500 having the external tension member described with respect to FIG. 5D having three anchor points. By way of illustration, a first anchor point 594 is positioned adjacent to a first end 520 of the hydrodynamic profile system 500. A second anchor point 596 and a third anchor point 598 are positioned adjacent to a second end 516 of the hydrodynamic profile system 500. Each of the anchor points may represent a region or point of a marine assembly that is fixed with respect to the hydrodynamic profile system 500, for example, in such a way that the movement of the cable or other associated component is limited. At the first end 520, the hydrodynamic profile system 500 can be connected to the first anchor point 594 by cable 554a.And at the second end 516, the hydrodynamic profile system 500 can be connected to the second anchor point 596 by cable 554b and to the third anchor point 598 by another connecting cable 556.

[00113] The second anchor point 596 and the third anchor point 598 can help arrange the actuator 524 within the hydrodynamic profile system 500. For example, the actuator 524 can be positioned substantially between the second anchor point 596 and the third anchor point 598. This can allow the actuator to be connected with one of the through cables. Petition 870260061129, dated 06 / 22 / 2026, page 49 / 173 40 / 63 526a, 526b and define an external tension member for the hydrodynamic profile system 500.

[00114] In the embodiment of FIG. 5E, the actuator 524 is connected with the first through cable 526a. As shown in the detail of FIG. 5E, the first through cable 526a and the second through cable 526b can each converge to a connection point defined on the second anchor point 596. On the second anchor point 596, a ring 552' can be positioned to fit each of the first through cable 526a and the second through cable 526b. In the embodiment of FIG. 5E, the second through cable 526b can terminate or be tied to the ring 552'. The first connecting cable 526a, however, can be engaged with the ring 552', as well as extend through the ring 552', and continue beyond the second anchor point 596 for connection with the actuator 524. As shown in FIG. 5E, a connecting cable 554b can connect the actuator 524 to the third anchor point 596.

[00115] FIG. 5F shows another example of implementing the actuator 524 as an external tension member. For example, FIG. 5F shows the hydrodynamic profile system 500 having an external tension member described with respect to FIG. 5D and having two anchor points. In this respect, the embodiment of the hydrodynamic profile system 500 of FIG. 5F can be substantially analogous to that shown with respect to FIG. 5E. However, as the detail of FIG. 5F shows, the ring 552' can be decoupled with a fixed connection, such as the second anchor point 596 of FIG. 5E. In this respect, a connecting cable 528 can be used to connect the ring 552' to the actuator 524 and stabilize a position of ring 552' along the first connecting cable 526a.

[00116] FIGS. 6A and 6B represent a perspective view of the 600 hydrodynamic profile system. The profile system Petition 870260061129, dated 06 / 22 / 2026, p. 50 / 173 41 / 63 hydrodynamic 600 can be substantially analogous to any of the profile systems described herein, such as the hydrodynamic profile system 500 of FIG. 5. In this respect, the hydrodynamic profile system 600 can be configured to generate lift in a marine environment and may include: hydrodynamic profile sections 604, a leading edge 608, a trailing edge 612, a first through cable 642, a second through cable 644, a connection point 646, and an actuator 624. Redundant explanation of such components is omitted here for clarity.

[00117] FIGS. 6A and 6B also represent the hydrodynamic profile section 600 having the first duct 632 and the second duct 634. The first through cables 642 can be positioned inside and threaded through the first duct 632, and the second through cable 644 can be positioned inside and threaded through the second duct 634. As shown in FIGS. 6A and 6B, the first through cable 642 and the second through cable 644 can converge at the connection point 646. This can facilitate the adjustment of a tension in one or both of the first through cables 642, 644, as described herein. Extending from the connection point can be a connection point 648. The connection cable 648 can be a component or assembly of a marine assemblies, such as the seismic assemblies described herein. In other cases, such as that described with respect to FIG.7. Cable 648 can be a connection to, or used to connect, the hydrodynamic profile system 600 with another profile system in order to form a modular hydrodynamic profile system.

[00118] FIGS. 6A and 6B represent the 600 hydrodynamic profile system in embodiments where an angle of attack of the 600 hydrodynamic profile system can be adjusted. For example, as described herein, a tension in one or both cables of Petition 870260061129, dated 06 / 22 / 2026, page 51 / 173 42 / 63 passage of 642, 644 can be adjusted by actuator 624. Adjusting the tension can cause the hydrodynamic profile section 604 to change an angle of attack relative to a flow F.

[00119] FIGS. 6A and 6B also represent a change in a triangular shape formed by the through cables 642, 644, and an end of the hydrodynamic profile section 604 adjacent to the connection point 646. As described herein, the triangular shape can change according to a magnitude of stress in one or both through cables 642, 644. In the examples shown in FIGS. 6A and 6B, the actuator 624 is associated with the first through cable 642. In a neutral or unintuitive state, the first through cable 642 can form a substantially ninety-degree angle (e.g., θ) with the end of the hydrodynamic profile section 604, and thus the triangular shape can resemble a right triangle. As the actuator 624 works to decrease the stress exhibited by the first through cable 642, the triangular shape can change, for example, to represent an isosceles triangle.As evidenced by the variable shape of the triangular form, an angle of attack of the hydrodynamic profile system 600 can be modified without depending on, or being substantially unimpeded by, adjacent profile systems or other components of the seismic assembly, and so on.

[00120] With reference to FIG. 6A, the hydrodynamic profile system 600 is shown at a first angle of attack a. For example, the actuator 624 can adjust the tension in one or both of the first through cables 642, or in the second through cable 644. The adjustment can be an increase in tension, for example, from a slack or equilibrium tension, which, in turn, causes individual sections of hydrodynamic profile 604 to orient themselves at angle a, from the flow direction F.

[00121] When positioned at the first angle of attack a, the system Petition 870260061129, dated 06 / 22 / 2026, page 52 / 173 43 / 63 hydrodynamic profile 600 can generate a first lift. For example, hydrodynamic profile sections 604 can be a standard NACA or other form of hydrodynamic profile as described herein, and as such, when oriented at angle of attack a, hydrodynamic profile sections 604 can generate the first lift. The first lift can be a lift that is intended to drive, position, and / or otherwise hold or manipulate components or assemblies of a marine assembly. In this respect, actuator 624 can be coupled with the first through cable 642, or the second through cable 644, and adjust the tension on one or both of the first through cables 642, or the second through cable 644 so that the hydrodynamic profile system 600 generates the required lift.

[00122] As shown in FIG. 6A, when the hydrodynamic profile system 600 is arranged at the first angle of attack a, the first through cable 642 can generally form an angle θ with the adjacent end of the hydrodynamic profile section 604. While the angle θ is shown in FIG. 6A as being substantially ninety degrees, it will be appreciated that angles of various magnitudes are possible, for example, based on a tension in the first through cable 642.

[00123] Consequently, the actuator 624 may be a dynamic actuator that is configured to adjust the tension in one or both of the first two cables 642 and the second cable 644 in response to a signal. The signal may be from another source, such as a vessel, which causes the actuator 624 to adjust the tension in one or both cables 642, 644 to a given value. Additionally or alternatively, the actuator 624 may be responsive to dynamic conditions and operate to facilitate the maintenance of the hydrodynamic profile system 600 along a Petition 870260061129, dated 06 / 22 / 2026, p. 53 / 173 44 / 63 desired course or position. For example, various sensors can be integrated with the hydrodynamic profile system 600, including within the hydrodynamic profile sections 604, and emit various data, such as the position and speed of the hydrodynamic profile system, as well as information relating, for example, to a marine environment, such as pressure, temperature, currents, and so on. Such data from sensors incorporated with the hydrodynamic profile system 600 can be used by the actuator 624 (or other associated system) in order to manipulate the hydrodynamic profile system 600. To illustrate, such sensors can detect that the hydrodynamic profile system 600 is undesirably positioned within a marine assembly (for example, due to unforeseen hydrodynamic forces).In turn, a processing element, controller, and so on (local and / or remote) can determine a new target lift for the hydrodynamic profile system 600 to generate in order to obtain its desired position. The actuator 624 can receive information about the new target lift and adjust the tension in one or both of the connecting cables accordingly.

[00124] In this regard, with reference to FIG. 6B, the hydrodynamic profile system 600 is shown at a second angle of attack a'. At the second angle of attack a', the hydrodynamic profile system 600 can generate a second angle of attack. The second elevator can be the new target elevator, for example, described above with respect to the operation of actuator 624 in FIG. 6A. In other cases, the second elevator may be desired or pre-determined for the marine assembly.

[00125] To facilitate the preceding, the actuator 624 can be coupled with the first through cable 642, or the second through cable 644, and adjust the tension on one or both of the first through cables 642, or on the second through cable. Petition 870260061129, dated 06 / 22 / 2026, p. 54 / 173 45 / 63 644. The adjustment may be an increase in tension, for example, of the tension of the cables in FIG. 6A. In turn, this may cause individual hydrodynamic profile sections to orient themselves at a greater angle to the flow F than that shown above with respect to FIG. 6A. Consequently, the second elevator may be larger than the first elevator, and thus used to steer, position, and / or otherwise hold or manipulate components or assemblies of a marine assembly in a manner distinct from the first elevator.

[00126] As shown in FIG. 6B, when the hydrodynamic profile system 600 is arranged at the second angle of attack a', the first through cable 642 can generally form an angle θ' with the adjacent end of the hydrodynamic profile section 604. While the angle θ' is shown in FIG. 6B as being an acute angle, it will be appreciated that angles of various magnitudes are possible, for example, based on a tension in the first through cable 642.

[00127] As described above with respect to FIG. 6A, the actuator 624 can be a dynamic actuator or configured otherwise to adjust a tension in one or both of the first through cable 642, or second through cable 644 when the hydrodynamic profile system 600 is submerged or deployed in the marine assembly. Thus, while the actuator 624 is described above as increasing a tension in the first through cable 642 or second through cable 644, it will be appreciated that the actuator 624 can decrease a tension in the cables. For example, the actuator 624 can decrease a tension in one or both cables of the first through cable 642, or the second through cable 644, in order to decrease a magnitude of the angle of attack. This may be desirable in order to decrease the lift generated by the hydrodynamic profile system 600. As such, instead of binary configurations, the Petition 870260061129, dated 06 / 22 / 2026, page 55 / 173 46 / 63 FIGS. 6A and 6B show two possible angles of attack across a spectrum of possibilities. The tension in the through cables is varied in order to modify the angle of attack to generate a target lift, and as such, the tension can be varied in any appropriate way in order to achieve a desired positioning or other manipulation of the marine assembly components using the lift generated by the 600 hydrodynamic profile system.

[00128] The profile system described herein can be used to define modules of a modular hydrodynamic profile system, such as the modular hydrodynamic profile system 700 described with respect to FIG. 7. For example, groups of hydrodynamic profile sections can be daisy-chained or linked to each other to create a modular hydrodynamic profile system. Each group of hydrodynamic profile sections can be tuned to generate a particular lift that may be different from other groups of hydrodynamic profile sections in the modular hydrodynamic profile system. This construction can increase the adaptability and accuracy of the system. For example, as described herein, each group of hydrodynamic profile sections can be supported within the modular hydrodynamic profile system by through cables, and the tension can be distinctly controlled for each respective group of hydrodynamic profile sections.In this way, not only can each group of hydrodynamic profile sections (module) have a distinct tension (and therefore a distinct angle of attack), the connecting cables can be more reactive to the actuators configured to adjust the tension, at least because the tension is adjusted over a shorter and more isolated span of the cable. The daisy-chained or linked groups of hydrodynamic profile sections can allow the modular hydrodynamic profile system to generate lift over a larger span within the marine assembly, thus increasing the design possibilities. Petition 870260061129, dated 06 / 22 / 2026, page 56 / 173 47 / 63 set that implements the profile system over a larger span.

[00129] To illustrate the foregoing, FIG. 7 represents the 700 modular hydrodynamic profile system. The 700 modular hydrodynamic profile system may include modules that are daisy-chained or linked together to form the 700 modular hydrodynamic profile system. In the example of FIG. 7, the 700 modular hydrodynamic profile system includes a first module 700a, a second module 700b, and a third module 700c; however, in other embodiments, more or fewer modules may be used. In general, each of the 700a, 700b, 700c modules may include a group of hydrodynamic profile sections, such as any of the hydrodynamic profile sections described herein, which cooperate to form a hydrodynamic profile shape and generate lift. In this regard, each of the 700a, 700b, and 700c modules can be configured to have an angle of attack with respect to a flow direction. The angle of attack for each of the 700a, 700b, and 700c modules is adjustable.This can allow each 700a, 700b, 700c module to have a distinct angle of attack, and subsequently generate a distinct lift. This can allow the 700 modular hydrodynamic profile system to fine-tune the lift generated along specific regions of the system, for example, increasing the lift generated at a first or second end, without necessarily adjusting the lift in other regions or adjacent regions of the system. As such, the 700 modular hydrodynamic profile system can more precisely control lift generation along its entire length or span, and also allow differential lift generation, which may be appropriate, for example, where distinct components or assemblies of the marine assembly (having different lift or positioning requirements) are connected along different regions of the 700 system. Petition 870260061129, dated 06 / 22 / 2026, page 57 / 173 48 / 63

[00130] It will be appreciated that each of the modules 700a, 700b, 700c may include components substantially analogous to the component described herein with respect to various other profile systems, such as the hydrodynamic profile system 500 and the hydrodynamic profile system 600 of FIGS. 5 and 6, 6B, respectively. For illustrative purposes, module 700a is shown as having hydrodynamic profile sections 704, leading edge 708, trailing edge 712, the first pair of through cables 726a, 726b, an actuator 724, and a connection 746; redundant explanation of such components is omitted here for clarity. Consequently, modules 700b and 700c may also include such components, such as a second pair of through cables 752a, 752b, and the associated functionality; however, this is not necessary.

[00131] Modules 700a, 700b, and 700c can be chained or connected to each other, partly due to the convergence of connecting cables (which support the hydrodynamic profile section groups) towards the connection points. For example, a connection point (e.g., connection point 746) can be a ring, a node, a pulley, or another point located between adjacent groups of hydrodynamic profile sections. Adjacent groups of hydrodynamic profile sections can be connected to each other using the connection point.

[00132] In the example of FIG. 7, the modular hydrodynamic profile system 700 includes the first pair of connecting cables 726a, 726b that support the hydrodynamic profile sections of module 700a. The modular hydrodynamic profile system 700 also includes the second pair of connecting cables 752a, 752b that support the hydrodynamic profile sections of module 700b. The first pair of connecting cables 726a, 726b can converge towards the connection point 746. This can allow module 700a to be fixed to a Petition 870260061129, dated 06 / 22 / 2026, p. 58 / 173 49 / 63 Discrete assembly of the marine assembly at junction point 726. For example, the discrete assembly may be the second module 700b, as shown in FIG. 7. As such, the second pair of through cables 752a, 752b may also converge towards junction point 746. As described herein, because each of the first pairs of through cables 726a, 726b and the second pair of through cables 752a, 752b converge to junction point 746, the profiles of module 700a may articulate with respect to the profiles of module 700b.

[00133] Although they are connected to each other using connection point 746, the first module 700a can move (or articulate) generally independently of the adjacent module 700b. Furthermore, connection point 746 can provide a demarcation between the first pair of through cables 726a, 726b and the second pair of through cables 752a, 752b, thus allowing each of the modules 700a, 700b to have distinct voltages. For example, an actuator associated with the first module 700a can be configured to change a voltage in one or both pairs of through cables 726a, 726b, and an actuator associated with the second module 700b can be configured to change a voltage in one or both pairs of the second pair of through cables 752a, 752b generally independently of the actuator associated with the first module 700a. As described here, adjusting the tension in the connecting cables can influence the angle of attack of the hydrodynamic profile sections, and therefore the lift generated.Consequently, because the tension in the first pair of through cables 726a, 726b can be adjusted independently of an adjustment in the tension of the second pair of through cables 752a, 752b, an angle of attack (and generated lift) can also be different in each respective module of the 700 system. Petition 870260061129, dated 06 / 22 / 2026, p. 59 / 173 50 / 63

[00134] It will be appreciated that the adjustable angle of attack of modules 700a, 700b is shown and described for illustrative purposes. As shown in FIG. 7, the 700 modular hydrodynamic profile system also includes a third module 700c, which may also have an adjustable angle of attack, for example, substantially analogous to that described with respect to modules 700a, 700b. In another case still, the 700 modular hydrodynamic profile system may have a fourth, fifth, sixth, seventh, or any appropriate number of modules, each connected to the other. In such cases, some or all of the individual modules may also have an adjustable angle of attack.

[00135] An exemplary form of a single hydrodynamic profile section 822 of a modular hydrodynamic profile system is represented in FIGS. 8A and 8B. The hydrodynamic profile section 822 is scalable to adapt to a wide range of elevation requirements while offering very high aspect ratios. The hydrodynamic profile section 822 has a body 830 with the hydrodynamic profile shape having a leading edge 832 and a trailing edge 834. The line connecting the leading edge 832 and the trailing edge 834 passing through half the thickness of the body 830 is referred to as the chord line of the hydrodynamic profile shape. When viewed from a top-plane perspective, the hydrodynamic profile section 822 may appear rectangular in shape. A first surface 836 extends between the leading edge 832 and the trailing edge 834, and may be curved.A second surface 838 of the body 830 extends between the leading edge 832 and the trailing edge 834, and may be relatively flat with respect to the first surface 836.

[00136] The body 830 has two lateral sides 842, 844 that extend between the lateral edges of the first surface 836, the second surface 838, and between the leading edge 832 and the edge of Petition 870260061129, dated 06 / 22 / 2026, p. 60 / 173 51 / 63 leak 834. Body 830 can be produced from solid cast polyurethane for near-neutral buoyancy and high abrasion resistance and durability. However, body 830 may still be slightly buoyant, so body 830 will influence the angle of attack, especially at low towing speeds. Thus, the downforce achieved by the hydrodynamic profile section 822 can be influenced by the selection of body 830 composition.

[00137] A first tubular conduit 846 may be defined within the body 830 and extends laterally through the body 830 adjacent to the leading edge 832 and open to each of the sides of the first and second sides 842, 844. The first tubular conduit 846 is dimensioned to receive ropes or cables (such as separation ropes and / or strut lines) of a seismic assembly.

[00138] A second tubular conduit 852 may be defined within the body 830 forward of the trailing edge 834 and extend laterally to it parallel to the first tubular conduit 846 and open to each of the first and second lateral sides 842, 844. The first tubular conduit 846 may be positioned within 50 percent aft of the length of the hydrodynamic profile section 822. The second tubular conduit 852 may be of the same size to receive a rope or cable.

[00139] The number of hydrodynamic profile sections 822 in a modular hydrodynamic profile depressor 120 or in a hydrodynamic profile wing system 420 is scalable to adapt to a wide range of lift requirements, while offering very high aspect ratios. In some cases, this may eliminate the need for supplemental ballast. In other cases, supplemental ballast may be desirable, and integrated with one or more hydrodynamic profile sections of the present disclosure, such as the Petition 870260061129, dated 06 / 22 / 2026, p. 61 / 173 Figures 52 / 63 shown below refer to FIGS. 9-11. The hydrodynamic profile sections 822 can rotate in a flow field. The angle of attack at which the modular hydrodynamic profile depressor 120 or hydrodynamic profile wing system 420 can achieve equilibrium will be a function of the moment coefficient of the particular cross-section of the hydrodynamic profile 822 to be used, and the comparative stresses established in the forward through cable 642 versus the aft through cable 644. When the aft through cable is completely slack, the center of rotation for the hydrodynamic profile section 822 will be the forward through hole 846.When the tension balance shifts between the 642 and 644 cables, the center of rotation is transferred to the aft passage hole 852, at which point the 642 cable acts to prevent further rotation of the hydrodynamic profile 822 around its center of rotation, thus establishing the new angle of equilibrium of attack.

[00140] Consequently, the magnitude of the downforce generated by a modular hydrodynamic profile depressor 120 or the external force generated by a hydrodynamic profile wing system 420 formed by hydrodynamic profile sections 822 can be controlled by several factors, including the following:

[00141] - Adjustment of the total span of the modular hydrodynamic profile depressor 120 or hydrodynamic profile wing system 420 (i.e., the number of sections of the depressor 822 threaded onto the chord or rod);

[00142] - Variation in chord length of hydrodynamic profile sections 822 (i.e., customizing the size of hydrodynamic profile sections 822 at the time of manufacture to suit the required end application); and

[00143] - Choice of camber for the hydrodynamic profile of hydrodynamic profile sections 822 (the hydrodynamic profile sections Petition 870260061129, dated 06 / 22 / 2026, page 62 / 173 53 / 63 822 with less or more curvature generate lower or higher elevation coefficients).

[00144] The second cable or threaded cable through the second tubular conduit 852 in the hydrodynamic profile sections 822 of the modular hydrodynamic profile depressor 120 or hydrodynamic profile wing system 420 allows elevator adjustment by controlling the catenary (billow) of the modular hydrodynamic profile depressor 120 of the hydrodynamic profile wing system 420. The cable pair can be adjusted in length to effect controllable elevator adjustments. The angle of attack achieved is a function of the relative lengths of the twin cables. For example, if the stern cable passing through the second tubular conduit 852 in the stern half of the hydrodynamic profile sections 822 is shortened relative to the cable passing through the first tubular conduit 846, the trailing edges 834 of the depressor sections 822 will be pushed laterally closer together, compared to the spacing between the hydrodynamic profile sections 822 at the leading edges 832.This causes the modular hydrodynamic profile depressor 120 or the hydrodynamic profile wing system 420 to be ejected and change the angle of attack along the length of the modular hydrodynamic profile depressor 120 or the hydrodynamic profile wing system 420.

[00145] The modular hydrodynamic profile depressor offers high aspect ratios and high lift-to-drag efficiency. The modular hydrodynamic profile depressor offers a high degree of flexibility in terms of the number of choices available, including pivot location, camber, rope length, tail fin size and angle, to selectively adjust the downforce to meet operational requirements and specifications. The lift is also adjustable by adjusting the tension in the cables that run through the profiles. Petition 870260061129, dated 06 / 22 / 2026, page 63 / 173 54 / 63

[00146] The modular profiles of this disclosure can also be adapted to receive ballast material and / or to add buoyancy to the hydrodynamic profile. For example, in particular applications, it may be desirable to selectively increase weight in the hydrodynamic profile section. This can increase the stability of the hydrodynamic profile and / or facilitate the orientation of the hydrodynamic profile in a given configuration. Additionally or alternatively, it may be desirable to add pockets to the hydrodynamic profile section that function to increase the buoyancy of the hydrodynamic profile section. In some cases, the same structure of the hydrodynamic profile section can be used to facilitate both increased buoyancy and the addition of ballast. For example, a pocket, tube, channel, or similar structure can be formed in the hydrodynamic profile section. This pocket or other similar structure can define an improved buoyancy portion of the hydrodynamic profile section.The bag can also be adapted to receive ballast material, depending on the desired application.

[00147] FIGS. 9-11 show examples of cross-sections of a hydrodynamic profile section that may include a flotation bag and / or be adapted to receive ballast material. It will be appreciated that the hydrodynamic profile sections shown in FIGS. 9-11 can be used with any modular hydrodynamic profile system described herein. For example, the modular profile system of the present disclosure may include a plurality of hydrodynamic profile sections, and some or all of the plurality of hydrodynamic profile sections may include a hydrodynamic profile section adapted to include a flotation bag and / or to receive ballast material. In some cases, this may include a combination of hydrodynamic profile sections, some of which have a buoyancy bag and / or ballast material, along with other profile sections. Petition 870260061129, dated 06 / 22 / 2026, page 64 / 173 55 / 63 hydrodynamic profiles that do not necessarily include such features. The example geometries of hydrodynamic profile sections in FIGS. 9-11 are therefore presented for illustrative purposes; in other embodiments, other geometries are contemplated here.

[00148] With reference to FIG. 9, hydrodynamic profile section 922 is shown. Hydrodynamic profile section 922 may be substantially analogous to hydrodynamic profile section 822 described above, and as such includes similar components and / or performs similar functions. In this respect, hydrodynamic profile section 922 includes a leading edge 932, a trailing edge 934, a first surface 936, a second surface 938, a first tubular 946, and a second tubular 952. FIG. Figure 9 also shows the hydrodynamic profile section including a first pocket 970 and a second pocket 972. The first and second pockets 970, 972 may be features formed within a body of the hydrodynamic profile section 922. For example, the first and second pockets 970, 972 may be channels, holes, portions, or other similar features that extend through some or all of the cross dimensions of the hydrodynamic profile section 922.The first and second bags 970, 972 can be adapted to define a portion of the hydrodynamic profile section 922 with greater buoyancy, such as the box where the bags 970, 972 are filled with a material with a lower density than the fluid within which the hydrodynamic profile section 922 is immersed or partially immersed. In other cases, the first and second bags 970, 972 can be adapted to receive a ballast material. The ballast material can generally have a density similar to or greater than the density of the fluid within which the hydrodynamic profile section is immersed or partially immersed.

[00149] With reference to FIG. 10, the hydrodynamic profile section Petition 870260061129, dated 06 / 22 / 2026, page 65 / 173 56 / 63 Figure 10 is shown. Hydrodynamic profile section 1022 may be substantially analogous to the hydrodynamic profile section 1022 described above, and as such includes similar components and / or performs similar functions. In this respect, hydrodynamic profile section 1022 includes a leading edge 1032, a trailing edge 1034, a first surface 1036, a second surface 1038, a first tubular 1046, and a second tubular 1052. Figure 10 also shows hydrodynamic profile section 1022 as including a first pocket 1070, a second pocket 1072, and a third pocket 1074. Pockets 1070, 1072, and 1074 may be substantially analogous to pockets 970 and 972 described above in relation to Figure 10. 9. Nevertheless, pockets 1070, 1072, 1074 may have a different geometry and arrangement in the hydrodynamic profile section 1022. For example, as shown in FIG.10, the bags 1070, 1072 are generally arranged between the first and second tubular conduits 1046, 1052, and the third bag 1074 is generally arranged between the second tubular conduit 1052 and the trailing edge 1034. The bags 1070, 1072, 1074 can generally assume a larger cross-sectional area of ​​the hydrodynamic profile than that of the bags in FIG. 9, and thus can be adapted to provide buoyancy or improved ballast, as may be appropriate for a given application.

[00150] With reference to FIG. 11, hydrodynamic profile section 1122 is shown. Hydrodynamic profile section 1122 may be substantially analogous to the hydrodynamic profile section 1122 described above, and as such includes similar components and / or performs similar functions. In this respect, hydrodynamic profile section 1122 includes a leading edge 1132, a trailing edge 1134, a first surface 1136, a second surface 1138, a first tubular conduit 1146, and a second conduit Petition 870260061129, dated 06 / 22 / 2026, p. 66 / 173 57 / 63 tubular 1152. A third tubular conduit 1148 and a fourth tubular conduit 1149 are also shown, which can be adapted to receive one or more ropes or cables, as described herein in relation to other conduits further on in the hydrodynamic profile sections described herein. FIG. 11 also shows the hydrodynamic profile section 1122 as including a first pocket 1170 and a second pocket 1172. The pockets 1170, 1172 may be substantially analogous to the pockets 970, 972 described above in relation to FIG. 9. However, the pockets 1170, 1172 may have a different geometry and arrangement in the hydrodynamic profile section 1122. For example, as shown in FIG. 11, the first pocket 1170 may have a first shape and be arranged generally between the collection of tubular conduits 1146, 1148, 1149 and a tubular conduit 1152. The second pocket 1172 may have a second shape and be arranged generally between the tubular conduit 1152 and the trailing edge 1134.Due to the different shape of the first and second pockets 1170, 1172, the hydrodynamic profile section 1122 can be adapted to exhibit buoy and ballast properties that may differ from those exhibited, for example, by the hydrodynamic profile section 922. In other cases, other geometries are possible and are contemplated here.

[00151] Modular hydrodynamic profile depressors applied to umbilicals or other similar type cables can also be scaled by the number of cables that are deployed, for example, by daisy-chained depressor sections at intervals along the cable. As described herein, the modular hydrodynamic profile depressor, including various combinations of hydrodynamic profile sections, shapes, systems, and so forth, can be used to generate a negative lift (e.g., along a perpendicular direction) that depresses or holds components of a marine assembly at a submerged depth. Petition 870260061129, dated 06 / 22 / 2026, page 67 / 173 58 / 63

[00152] To facilitate the reader's understanding of the various functionalities of the implementations discussed here, reference is now made to the flow diagram in FIG. 12, which illustrates process 1200. While specific steps (and step orders) of the methods presented here have been illustrated and will be discussed, other methods (including more, fewer, or different steps than those illustrated here) consistent with the teachings presented here are also considered and included in this publication.

[00153] In this regard, with reference to FIG. 12, process 1200 generally relates to the positioning of a modular hydrodynamic profile system in a marine assembly. Process 1200 can be used with any of the profile systems, modular profile systems, and so on, described herein, such as the 500, 600 profile system and the 700 modular hydrodynamic profile system, and variations and embodiments thereof.

[00154] In operation 1204, a towed marine system, assembly or device is launched. In some cases, the assembly may include a cable configured to carry a payload and a modular hydrodynamic profile system coupled to the cable.

[00155] As an example and with reference to FIG.2, a seismic assembly 200 can be deployed in a marine environment. The seismic assembly 200 can include several cables, such as the transverse cable 208. A seismic assembly 200 can also include a modular hydrodynamic profile system coupled to the cable, such as the modular hydrodynamic profile depressor 220.

[00156] In operation 1208, positional data are acquired for the towed cable, payload, or other towed device. For example, and with reference to FIG. 1, one or more sensors of the seismic array 100 can determine or detect the position of a payload towed by a vessel. Petition 870260061129, dated 06 / 22 / 2026, p. 68 / 173 59 / 63

[00157] In operation 1212, the acquired positional data are compared with an operational target, such as a target position, for the towed cable, payload, or other towed device. For example, and with reference to FIG. 1, the seismic assembly may include one or more processing units, including computer-executable instructions, that operate to compare the acquired positional data with a target position. In turn, in operation 1216, the processing unit or other associated equipment may determine that the positional data are within operational tolerances. For example, the processing unit and / or other associated component may determine an adjustment parameter for the modular hydrodynamic profile system based on the comparison of the acquired positional data and the target position.This adjustment parameter can, in turn, be used to adjust the angle of attack and elevation control of the modular hydrodynamic profile system.

[00158] For example, in operation 1220, an angle of attack can be adjusted for one or more modular profile systems of the assembly. This may involve adjusting the angle of attack of a hydrodynamic profile section relative to other components of the assembly. For example, and with reference to FIG. 7, a group of hydrodynamic profile sections of a first module 700a can be adjusted relative to the angle of attack of a second group of hydrodynamic profile sections 700b. To facilitate the foregoing, a tension in the connecting cables supporting the first group of hydrodynamic profile sections can be adjusted independently of a tension in a second pair of connecting cables supporting the second group of hydrodynamic profile sections. Consequently, the first group of hydrodynamic profile sections can generate a lift that is distinct from a lift generated by the second group of profile sections. Petition 870260061129, dated 06 / 22 / 2026, page 69 / 173 60 / 63 hydrodynamic. This can be facilitated by an actuator, such as a dynamic actuator, which uses the adjustment parameters to control the tension and adjust the angle of attack.

[00159] The method in FIG. 12 can, after operation 1220, return to operation 1208. In the second iteration of operation 1208, method 1200 can proceed, acquiring positioning data for the towed payload, after adjustments to the angle of attack in operation 1220. In this respect, method 1200 can continue and determine whether the adjustments to the angle of attack have achieved the appropriate or desired position of the towed payload. For example, in the second iteration of operation 1212, the acquired position data (for the payload influenced by the adjusted angle of attack in operation 1220) are compared with the target position for the towed cable, payload, or other towed device. In turn, in the second iteration of operation 1216, the subsequently acquired position data are determined to be within the operating tolerance.

[00160] In this regard, after a determination in operation 1216 that the acquired positioning data is within the operating tolerance, method 1200 may proceed to operation 1224. In operation 1224, towing may be continued (or initiated) to the marine system, assembly, or device.

[00161] FIG. 13 represents another embodiment of a marine assembly. In particular, FIG. 13 shows a marine assembly 1300. The marine assembly 1300, as within any marine assembly described herein, may be, or be associated with, a seismic assembly, a fishing trawl net, a military application, an oceanographic study, and / or substantially any other maritime application. The embodiment of FIG. 13 shows the marine assembly having towed cable and payload that is directed or positioned within a starboard marine environment and a hydrodynamic profile system. Petition 870260061129, dated 06 / 22 / 2026, pp. 70 / 173 61 / 63 skewed to port.

[00162] For ease of reference, the marine assembly includes a vessel 1302. The vessel 1302 is shown positioned along a surface of a marine environment 1304. Attached to the vessel 1302 is a tow cable 1306. The tow cable 1306 can be towed through the marine environment 1304 by the vessel 1302. The tow cable 1306 can carry or pull a towed body or other payload 1308 through the marine environment 1304. In some cases, a streamer cable 1314 can be pulled by the towed body 1308 through the marine environment 1304.

[00163] It may be desirable to guide, position, stabilize, and so on the towed body 1308 and associated components within the marine environment 1304. In this respect, FIG. Figure 13 shows the marine assembly 1300 including a first hydrodynamic profile system 1310 and a second hydrodynamic profile system 1312 coupled with the towed cable 1306.The first hydrodynamic profile system 1310 and the second hydrodynamic profile system 1312 may be substantially analogous to any of the profile systems described herein. As such, the first hydrodynamic profile system 1310 and the second hydrodynamic profile system 1312 may each include a group of hydrodynamic profile sections collectively defining an angle of attack and thus be configured to generate a lift.

[00164] In one embodiment, the first hydrodynamic profile system 1310 may have an angle of attack that causes the first hydrodynamic profile system 1310 to generate a lift that deflects the towed cable 1306 toward starboard. Furthermore, the second hydrodynamic profile system 1312 may have an angle of attack that causes the second hydrodynamic profile system 1312 to generate a lift that deflects the towed cable 1306 toward Petition 870260061129, dated 06 / 22 / 2026, pp. 71 / 173 62 / 63 to a port direction. In this respect, the first hydrodynamic profile system 1310 and the second hydrodynamic profile system 1312 can neutralize each other and thus help to stabilize or control the position of the towed body 1308 in the marine environment 1304. In some cases, the angle of attack of one or both of the first hydrodynamic profile system 1310 or the second hydrodynamic profile system 1312 may have an adjustable angle of attack, which can be manipulated to help steer the towed body 1308, as may be appropriate for a given application.

[00165] Other examples and implementations are within the scope and spirit of the disclosure and appended claims. For example, the implementation functions may also be physically located in multiple locations, including being distributed so that parts of the functions are implemented in different physical locations. Also, as used herein, including in the claims, or as used in a list of items preceded by at least one of indicates a disjunctive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Furthermore, the term exemplary does not mean that the example described is preferred or better than other examples.

[00166] The preceding description, for explanatory purposes, uses specific nomenclature to provide a complete understanding of the embodiments described. However, it will be evident to a person skilled in the art that the specific details are not necessary for the practice of the embodiments described. Thus, the preceding descriptions of the specific embodiments described herein are presented for illustrative and descriptive purposes. They are not intended to be exhaustive or to limit the embodiments. Petition 870260061129, dated 06 / 22 / 2026, page 72 / 173 63 / 63 to the precise forms disclosed. It will be evident from one of the common competencies in the technique that many modifications and variations are possible, taking into account the teachings mentioned above. Petition 870260061129, dated 06 / 22 / 2026, pp. 73 / 173

Claims

1 / 4 CLAIMS 1. Marine assembly (100, 1300) comprising: a cable (106, 108, 1306) configured to be towed by a ship (102, 1302) and to carry a submerged payload (1308) through a marine environment (1304); and a modular hydrodynamic profile system (500, 600, 700, 1310, 1312) coupled with cable (1306) and configured to direct the submerged payload (1308) to a target position, wherein the modular hydrodynamic profile system (500, 600, 700, 1310, 1312) includes a group of hydrodynamic profile sections (504, 604, 704) collectively defining an angle of attack, and a pair of through cables (526a, 526b, 642, 644, 726a, 726b) coupling the group of hydrodynamic profile sections (504, 604, 704) to each other within the modular hydrodynamic profile system (500, 600, 700, 1310, 1312) and converging to a connection point (550, 552, 646, 746), characterized by the fact that the modular hydrodynamic profile system (500, 600, 700, 1310,1312) includes a first duct (632) and a second duct (634), each duct extending through the group of hydrodynamic profile sections (504, 604, 704), and wherein the pair of through cables (526a, 526b, 642, 644, 726a, 726b) includes a first through cable (642) and a second through cable (644) extending through the first and second ducts (632, 634), respectively.

2. Marine assembly (100, 1300), according to claim 1, characterized in that it further comprises an actuator (524, 624, 724) configured to alter a voltage in one or both pairs of connecting cables (526a, 526b, 642, 644, 726a, 726b), thereby altering the angle of attack.

3. Marine assembly (100, 1300), according to Petition 870260061129, dated 06 / 22 / 2026, page 74 / 173 2 / 4 claim 1, characterized in that: the group of hydrodynamic profile sections (704) is a first group of hydrodynamic profile sections (700a) defining a first angle of attack; the pair of through cables (726a, 726b) is a first pair of through cables (726a, 726b); and the modular hydrodynamic profile system (700) further comprises: a second group of hydrodynamic profile sections (700b) collectively defining a second angle of attack; and a second pair of connecting cables (752a, 752b) supporting the second group of hydrodynamic profile sections (700b) within the modular hydrodynamic profile system (700), and converging towards the connection point (746).

4. Marine assembly (100, 1300), according to claim 3, characterized in that the second angle of attack is distinct from the first angle of attack.

5. Marine assembly (100, 1300), according to claim 3, characterized in that it further comprises an actuator (724) configured to alter a voltage in one or both of the first pair of connecting cables (726a, 726b), thereby altering the first angle of attack relative to the second angle of attack.

6. Marine assembly (100, 1300), according to claim 1, characterized in that the submerged payload (1308) is an instrument configured to collect or transmit data, and / or in that the target position includes at least one of a lateral position or a depth position.

7. Marine assembly (100), as claimed in Petition 870260061129, dated 06 / 22 / 2026, p. 75 / 173 3 / 4 1, characterized in that: the cable (106) is a first cable towed by the ship (102); the marine assembly (100) also comprises a second cable (106) towed by the ship (102); and the modular hydrodynamic profile system (500, 600, 700, 1310, 1312) is disposed substantially between submerged portions of the first cable (106) and the second cable (106).

8. Marine assembly (100), according to claim 1, characterized in that: the cable (108) is a separator cable (108); the marine assembly (100) also comprises streamer cables (110) configured to be towed behind the separator cable (108); the submerged payload includes seismic receivers carried by the streamer cable (110); and the angle of attack is configured to maintain the seismic receivers at a desired depth.

9. Marine assembly (100), according to claim 1, characterized in that: the cable (108) is a lateral cable (108) of the marine assembly (100) under tension; the lateral cable (108) includes an end portion positioned along an edge of the marine assembly (100); and the modular hydrodynamic profile system (500, 600, 700, 1310, 1312) is coupled with the lateral cable (108) adjacent to the end portion.

10. Marine assembly (100), according to claim 9, characterized in that: the marine assembly (100) further comprises a support line (114) connected to the end portion of the lateral cable (108); and Petition 870260061129, dated 22 / 06 / 2026, p. 76 / 173 4 / 4 the modular hydrodynamic profile system (500, 600, 700, 1310, 1312) is connected to the support line (114) opposite the lateral cable (108).

11. Marine assembly (100, 1300), according to claim 1, characterized in that: the cable is an upper cable; the modular hydrodynamic profile system (500, 600, 700, 1310, 1312) is a first modular hydrodynamic profile system (500, 600, 700, 1310, 1312); and the marine assembly (100, 1300) further comprises: a lower cable; and a second modular hydrodynamic profile system (500, 600, 700, 1310, 1312) attached to the lower cable; and the upper cable and the lower cable cooperate to form a fishing trawl net mouth. Petition 870260061129, dated 22 / 06 / 2026, p. 77 / 173

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