Sports rowing boat with optimized hydraulic performance and transportable modular configuration

Abstract

The present invention consists of a sports rowing boat comprising a modular hull configured to receive a frame, where the frame is configured to receive at least one carriage assembly and at least one support assembly. The modular hull is formed by a bow module, one or more intermediate modules, at least one carriage module, at least one support module and a stem module. The frame is formed by two telescopic posts, where each telescopic post is formed by a plurality of frame portions. In this form, the quantity of carriage modules and support modules depend on the quantity of carriage assemblies and support assemblies that are had for each required configuration or boat size. All the modules, inserts, caps, frame portions components of the assemblies are joined or coupled in a temporary manner, such that the rowing boat can be assembled and disassembled to facilitate its transportation.

Description

[0001] SPORTS ROWING BOAT WITH OPTIMIZED HYDRAULIC PERFORMANCE AND TRANSPORTABLE

[0002] MODULAR CONFIGURATION

[0003] Technical Field of the Invention

[0004] The present invention relates to the field of competition vessels for sports rowing . In particular , this invention consists of a sports rowing boat that possesses a larger flotation area with a smaller frontal drag area , to provide novel advantages over rowing boats of the state of the art . Additionally, the rowing boat of the present invention is configured in a modular and transportable manner .

[0005] Background of the Invention

[0006] Rowing as a mode of vessel propulsion has been used for thousands of years . However, rowing as a sport developed in the seventeenth century . Currently, there are different modalities of rowing that are classified according to the number of crew members that row in the vessel , whether one ( sweep or side ) or two oars ( couple or scull ) are used, and whether they have a coxswain or not . Sports rowing boats are also classified according to the type of seat , whether it is a sliding seat or a fixed seat . Generally, rowing competitions or regattas are held over an Olympic distance of 2000m, with shorter distances for certain non-Olympic categories and modalities . There are also long-distance and marathon regattas . Sports rowing also distinguishes categories according to weight, as well as the gender of the crew .

[0007] Sports or competition rowing boats consist of fine and long vessels . Originally rowing boats were made of clinker hulls . Subsequently, competition boats were built with conventional smooth wooden hulls . Starting in the 1970s , rowing boats began to be made of composite materials such as carbon fiber, seeking to optimi ze the vessel through lower weight and greater stiffness . The first carbon fiber competition boats were used at the 1972 Munich Olympic Games . As an example , in 1950 an "eight" rowing boat weighed around 300 pounds ( 136 kg) , while in the year 2000 it weighed around 200 pounds ( 91 kg ) . In this regard, it is evident in the state of the art the need to optimi ze the hydraulic performance of sports rowing boats , using lighter materials . However , the configuration of rowing boats has undergone few changes in recent decades .

[0008] Considering the above , there exist in the state of the art some patent documents and utility models aimed at providing a rowing boat with this type of improvements .

[0009] In this regard, the German patent DE3812075 and the United States patent US5016557 describe conventional rowing boats configured in a modular form . On the one hand, the German patent DE3812075 describes an intermediate module that can be added to obtain different boat configurations . While the United States patent US5016557 describes three hull sections including a bow section, a stern section and a center section . The bow and stern sections have the same number of rowing stations and the center section has twice the number of rowing stations . The sections are designed and constructed so that the bow section and the stern section can be directly connected to each other to form a hull with a conventional four-oar rowing configuration, the center section can be connected between the bow and stern sections to form a hull that has a second conventional eight-oar rowing configuration . In both cases the boats of both patents describe conventional competition boats whose only advantage is that they adapt to different configurations , but the modules or sections they propose still have a considerable si ze that hinders their transportability . Another disadvantage of these patents is that they do not propose configurations that are lighter or that present improvements regarding their hydraulic performance .

[0010] On the other hand, the Chinese patent application CN110803251A describes a flat-type rowing boat made from plastic foam to form a boat body with a bow and a stern . The patent focuses on the composite material . . . of the boat which consists of a plastic foam, a layer of elastic fiber fabric , a waterproof layer and a cockpit layer . Additionally, the vessel has a balance device whose end is submerged in water to generate reverse buoyancy and recover balance . With this configuration, it is sought that the boat be of simple manufacture , low cost, light weight, high speed, high safety and small size . However, the main disadvantage of this boat is the complexity of constructing the layers of the manufacturing material . Another disadvantage would be the lack of adaptability or flexibility to transform into the desired rowing boat configuration . Another further disadvantage is the difficulty of transporting the rowing boat .

[0011] For its part , the Chinese utility model CN206407096U describes a recreational vessel , comprising a floating body and a support system . The support system comprises a support pedestal , a seat or chair, a sliding rail , a base , a pedal , a pedal plate and a group of pulleys . However , the main disadvantage of this boat is that the floating body is formed from a single body which lacks adaptability or flexibility to transform the rowing boat configuration . Another further disadvantage is that the support pedestal of the rowing system only fulfills the function of support, so it does not favor stiffness in boat construction .

[0012] Now, the Chinese utility model CN207809708U describes a recreational vessel for two people comprising a floating body and an operating device . The operating device comprises a support system, a rowing system and a rower fixation system . In the configuration described for two people , there are two sets of said operating device . In this document , it is considered that the floating body can be used as a surfboard and can also be used as a recreational kayak . However , the main disadvantage of this boat is that the floating body is formed from a single body which lacks adaptability or flexibility to transform the rowing boat configuration . Another further disadvantage is that the support pedestal of the rowing system only fulfills the function of support, so it does not favor stiffness in boat construction .

[0013] Finally, the United States patent application US20160176479A1 that describes a flat and modular structure for assembling a vessel from modular groups that, at least , comprise a first modular group with different types of hull modules , a second modular group with different types of bow modules and a third modular group with different types of stern modules . The modules are interchangeable and the variety of possible module combinations allows building different vessels adaptable to different needs . Furthermore , according to the document , the modular groups or sections are made of a floating material or are hollow, sealed and floating . This patent describes many floating assemblies or configurations . One disadvantage of this application is that the stiffeners , as well as connection and fixation means only fulfill the function of support and union, so they do not favor stiffness in boat construction . Another disadvantage is that the application does not propose improvements to optimi ze the hydraulic performance of the different vessel configurations considered .

[0014] Based on the foregoing, there exists in the state of the art the need for a sports rowing boat that is made of a light material , but that also presents a modular configuration, where said modular configuration allows the vessel to adapt to the desired boat si ze and disassemble to facilitate its transportation, but that at the same time allows optimi zing the hydraulic performance of the vessel by presenting a larger flotation area with a smaller frontal drag area .

[0015] Objectives of the Invention One obj ect of the present invention consists in providing a sports rowing boat made of a light material .

[0016] Another obj ective of the present invention consists in the rowing boat being modular , in order to adapt to the required configuration or boat size .

[0017] Likewise , another obj ective of the present invention consists in the modular rowing boat allowing assembly and disassembly to facilitate its transportation .

[0018] Finally, another further obj ective of the present invention includes the sports rowing boat having a hydraulic performance with a larger flotation area and a smaller frontal drag area .

[0019] Brief Description of the Figures

[0020] To provide a better understanding of the invention, the following drawings are attached :

[0021] Figure 1 refers to a front left upper perspective view of the sports rowing boat of the present invention, in a first embodiment , in assembled position .

[0022] Figure 2 refers to a rear right upper perspective view of the sports rowing boat of the present invention, in a first embodiment , in disassembled position . Figure 3 refers to a detailed upper perspective view of the central zone of the sports rowing boat of the present invention, in a first embodiment, in disassembled position.

[0023] Figure 4 refers to a detailed side top view of a hull union of the sports rowing boat of the present invention, in a first embodiment, in disassembled position.

[0024] Figure 5 refers to a detailed side top view of a hull union of the sports rowing boat of the present invention, in a first embodiment, in assembled position.

[0025] Figure 6 refers to a rear left upper detailed perspective view of the bow of the sports rowing boat of the present invention, in a first embodiment, in disassembled position.

[0026] Figure 7 refers to a rear right upper perspective view of the sports rowing boat of the present invention, in a second embodiment, in disassembled position.

[0027] Figure 8 refers to a left lateral view of the sports rowing boat of the present invention, in a second embodiment, in assembled position.

[0028] Detailed Description of the Invention

[0029] As observed in Figure 1, a first embodiment of the present invention refers to a sports rowing boat (1) that consists of a modular hull (10) formed by a plurality of modules. The modular hull (10) is configured to receive a frame (20) formed by two telescopic posts (21) , where each telescopic post (21) is formed by a plurality of frame portions. The frame (20) is configured to receive the coupling of at least one carriage assembly (30) and at least one support assembly (40) . It should be noted that the present description will be made and illustrated based on a single scull sliding seat sports rowing boat in an exemplary manner. However, the teachings of the present invention are applicable to all types and categories of sports rowing vessels, as will be evident to an expert in the field.

[0030] Figure 2 illustrates the sports rowing boat (1) of the present invention with the frame (20) disassembled from the modular hull (10) . In this figure it can be observed that, in the preferred first embodiment, the modular hull (10) is formed by a bow module (11) , one or more intermediate modules (12) , at least one carriage module (13) , at least one support module (14) and a stern module (15) . It should be clarified that for another type or category of sports vessel the quantity of intermediate, carriage and support modules varies depending on the desired configuration. For example, the quantity of carriage modules (13) and support modules (14) depends on the quantity of carriage assemblies (30) and support assemblies (40) that are had for each desired configuration. Preferably, the plurality of modules (11, 12, 13, 14, 15) of the modular hull (10) are manufactured from panels of floating and light material of foam derived from a polymer. More specifically, the floating and light material consists of a rigid foam of extruded polystyrene or expanded polystyrene.

[0031] For their part, the telescopic posts (21) are formed by frame portions (22) that consist of perforated or unperforated metal profiles, which slide inside each other in a telescopic manner. Preferably, the metal profiles are of rectangular cross-section and are manufactured in aluminum. Preferably, the unperforated frame portions are placed in the center of the rowing boat, while the perforated frame portions are placed at the ends, in the bow and stern, since the boat requires greater structural rigidity in the central zone where the rower (s) is (are) placed.

[0032] Referring to Figure 3, a detailed view of the intermediate module (12) coupled to the carriage module (13) can be observed. The intermediate module (12) possesses two channels (16) , one on each side. The adjacent walls (17) to each channel (16) are reinforced by reinforcement tape (18) , in order to provide greater structural rigidity. The adjacent walls (17) and the reinforcement tape (18) possess several pairs of eyelets (19) spaced along the module. Particularly, the pairs of eyelets (19) are located in the proximity of the ends of the module. Each pair of eyelets (19) allows the passage of a link strip (25) that is used to couple the frame. In the preferred embodiment, the link strip (25) is a velcro strip. The . . . . . carriage module (13) is also illustrated m this figure and shares the two channels (16) , adjacent walls (17) , reinforcement tape (18) and pairs of eyelets (19) that have been described for the intermediate module (12) . But unlike the intermediate module (12) , the central zone of the carriage module (13) can possess cuts or holes (13a) of material, or can include inserts (13b) of material, with the purpose of adapting the zone to the carriage assembly (30) .

[0033] With reference to Figure 4, the coupling of the intermediate module (12) to the stern module (15) is observed. The stern module (15) also shares the two channels (16) , adjacent walls (17) , reinforcement tape (18) and pairs of eyelets (19) that have been described for the intermediate module (12) . But unlike the intermediate module (12) , the stern module (15) furthermore possesses a channel insert (15a) that is housed in the channel

[0034] (16) . In the preferred embodiment, the channel insert (15a) is manufactured from the same material as the modules, protrudes from the adjacent walls

[0035] (17) and possesses an upper inclination. Additionally, in the illustrated embodiment it can be observed that the intermediate module (12) that connects to the stern module (15) , also possesses a partial channel insert (12a) housed similarly within the channel (16) of the intermediate module

[0036] 15 (12) and whose inclination is continuous with the channel insert (15a) of the stern module (15) . Preferably, the partial channel insert (12a) is short and only runs a small length of the channel (16) of the intermediate module (12) . Figure 2 illustrates generally the arrangement of the inserts (12a) and (15a) and that the stern module (15) furthermore possesses -i* chamfered corners (15b) at its exterior end.

[0037] Regarding the coupling between the modules of the modular hull (10) , it can be observed in Figure 4 that the module (15) , possesses at its end at least one grooved projection (50) , which couples in a coincident manner with at least one inverted grooved projection (55) at the end of the adjacent intermediate module (12) . Preferably, the projections (50, 55) are found on all ends of the modules of the modular hull (10) , on the ends that couple to other adjacent modules of the modular hull (10) . In order to better exemplify the coupling, Figure 5 can be observed, where the modules (12, 15) are coupled coincidentally to each other, by means of the . . . grooved projection (50) and the inverted grooved projection (55) .

[0038] Figure 5 furthermore illustrates the manner in which the telescopic posts (21) of the frame (20) are linked to the modular hull (10) . When the modular hull (10) has all the modules coupled (as observed in Figure 2) , the telescopic posts (21) are placed inside the channels (16) that run 5 along the entire modular hull (10) on each side. The telescopic posts (21) also run over the channel inserts (12a, 15a) in the stern zone. In this manner, the link strips (25) that are distributed throughout the modular hull (10) , are linked passing over the upper surface of the telescopic posts (21) . The result of the frame (20) linked to the modular hull (10) can be better appreciated in Figure 1.

[0039] Regarding Figure 6, the bow module (11) is illustrated, which shares with the rest of the modules the two channels (16) , adjacent walls (17) , reinforcement tape (18) and pairs of eyelets (19) and link strips (25) . But unlike the other modules, the bow module (11) reduces its width by means of a chamfered cut (Ila) and has a central channel (11b) where a frame section (22) is placed that provides structural rigidity to the bow zone. The bow module (11) furthermore possesses a channel insert (not illustrated) that is housed in the channel (16) , similarly to the channel insert (15a) , equally manufactured from the same material as the modules, protrudes from the adjacent walls (17) and possesses an upper inclination. Similarly, the intermediate module that connects to the bow module (11) , also possesses a partial channel insert (not illustrated) like the partial channel insert (12a) . Finally, the bow module (11) possesses an endpiece (11c) that continues with the reduction of width in a substantially triangular form until forming a tip (lid) . In the illustrated embodiment, the endpiece (11c) possesses a central channel (lie) that continues with the central channel (11b) where the rest of the frame section (22) is placed. The endpiece (11c) furthermore possesses one or more caps (Ilf) linked by link strips (25) to cover the central channel (lie) in the endpiece (11c) . The endpiece (11c) of the bow allows the sports rowing boat (1) to cut the water in the direction the boat advances.

[0040] Referring again to Figure 1, the frame (20) allows the coupling of the carriage assembly (30) and the support assembly (40) . In the illustrated embodiment, the carriage assembly (30) comprises some rails (31) , some transverse supports (32) , a carriage (33) and a foot stretcher (34) . The rails (31) are fixed on the upper surface of the posts (21) of the frame, while the transverse supports (32) are joined to the telescopic posts (21) through the internal lateral faces of said posts. The carriage (33) has bearings that rotate on the rail (31) , while the foot stretcher (34) is fixed on one or more of the transverse supports (32) . It should be noted that the carriage assembly (30) is placed at the height where the carriage module (13) of the modular hull (10) is located. On the other hand, in the illustrated embodiment, the support assembly (40) comprises some arm supports (41) of different lengths and one or more arms (42) . The arm supports (41) traverse the lateral faces of the telescopic posts (21) and extend outward to fix the arms (42) . Because the arm supports (41) are of different lengths, the arms (42) are fixed at a determined angle with respect to the longitudinal axis of the rowing boat (1) . The distal end of the arms (42) possesses a rowlock (43) that allows rotatably coupling an oar (not illustrated) .

[0041] Now, Figures 7 and 8 illustrate a second embodiment of the present invention that refers to a sports rowing boat (101) , of catamaran type, that consists of a modular hull (110) formed by a plurality of modules. The modular hull (110) is configured to receive a frame (120) formed by two telescopic posts (121) , where the frame (120) is configured to receive the coupling of at least one carriage assembly (130) and at least one support assembly (140) , where the frame (120) and the assemblies (130, 140) are substantially equal to those previously described in the first embodiment. Similarly to the first embodiment, the second embodiment of the present invention will be made and illustrated based on a single scull sliding seat sports rowing boat in an exemplary manner. However, the teachings of the present invention are applicable to all types and categories of sports rowing vessels, as will be evident to an expert in the field.

[0042] In Figures 7 and 8 it can be observed that, in the preferred second embodiment, the modular hull (110) is formed by a bow module (111) , one or more intermediate modules (112) , at least one carriage module (113) , at least one support module (114) , at least one foot stretcher module (116) and a stern module (115) , and where each module consists of a pair of blocks that are installed on each telescopic post (121) , thus forming a catamaran-type vessel. Similarly to the first embodiment, the second embodiment can also be adapted to another type or category of sports vessel depending on the quantity of intermediate, carriage, support and foot stretcher modules according to the desired configuration. Preferably, each pair of blocks of the plurality of modules of the modular hull (110) are manufactured from panels of floating and light material of foam derived from a polymer and lined in a waterproof material.

[0043] Figure 7 illustrates the sports rowing boat (101) with the frame (120) disassembled from the modular hull (110) . In said figure it can be observed that each block possesses a channel (117) formed between two adjacent walls (118, 119) . Similarly to the first embodiment, in the second embodiment the channel (117) and its adjacent walls (118, 119) are reinforced by reinforcement tape, in order to provide greater structural rigidity. Figure 7 furthermore illustrates the manner in which the telescopic posts (121) of the frame (120) are linked to the modular hull (110) . When the modular hull (110) has all the modules coupled (as observed in Figure 8) , the telescopic posts (121) are placed inside the channels (116) that run along the entire modular hull (110) in each block. The adjacent walls and the reinforcement tape possess several pairs of eyelets spaced along each block. Similarly to the first embodiment, the telescopic posts (121) are fixed to each block by means of the pairs of eyelets that allow the passage of link strips, preferably velcro strip.

[0044] The blocks of the modules possess a slope in their height that varies along the modular hull (110) . The blocks of the bow module (111) possess a pointed termination and a determined maximum height. The blocks of the stern module (115) possess a flat termination and a determined maximum height. The blocks of the carriage module (113) have the minimum height, while the blocks of the remaining modules (112, 114, 116) form a height transition. In this manner the modular hull (110) forms a compensation arc with its maximum height in the bow module (111) and stern module (115) and its minimum height in the carriage module (113) . For example, in the illustrated embodiment, considering the weight of an 80 kg rower, the compensation arc is left with the part of the modules completely flat.

[0045] For their part, the modalities described in the present invention of the sports rowing boat (1, 101) are easily transportable since all the elements (modules, inserts or caps) of floating material, all the frame portions and all the components of the assemblies are joined or coupled in a temporary manner, so they can be completely disassembled.

[0046] Finally, the modalities described in the present invention of the sports rowing boat (1, 101) as have been referred to and illustrated have better hydraulic performance since the total weight of the rowing boat is less and the flotation area of the modular hull is greater . This results in the calculation of a smaller frontal drag area ( FDA) when compared with that of a traditional Olympic rowing boat ( TOR) as shown in the following table :

[0047] Fronts! Drag Area {FDA} Comparison At the watertine

[0048] Trasfitionsi Olympic Rowing Beat, round huts, half-round. TOR

[0049] Although specific modalities of the invention have been described above in detail , the description is simply for the purposes of illustration . Therefore , it should be appreciated that many aspects of the invention were described previously by way of example only and are not planned as required or essential elements of the invention, unless explicitly established otherwise . Various modifications of , and corresponding steps equivalent to the described aspects of the alternative modalities , besides those described above , can be made by a person with ordinary experience in the art who has the benefit of this description, without deviating from the spirit and scope of the invention, defined in the following claims , whose scope is to be granted the broadest interpretation to cover such modifications and equivalent structures .

Claims

Claims1 . A sports rowing boat comprising a modular hull configured to receive a frame , where the frame is configured to receive at least one carriage assembly and at least one support assembly, characterized in that : the modular hull is formed by a bow module , one or more intermediate modules , at least one carriage module , at least one support module and a stern module ; the frame is formed by two telescopic posts , where each telescopic post is formed by a plurality of frame portions ; and where the quantity of carriage modules and support modules depend on the quantity of carriage assemblies and support assemblies that are had for each desired configuration . 2 . The sports rowing boat in accordance with claim 1 , where the modules are manufactured from panels of floating and light material that consists of a rigid foam of extruded polystyrene or expanded polystyrene .3 . The sports rowing boat in accordance with claim 1 , where the frame portions consist of perforated or unperforated metal profiles , which slide inside each other in a telescopic manner, where the metal profiles are of rectangular cross-section and are manufactured in aluminum .4 . The sports rowing boat in accordance with claim 3 , where the unperforated frame portions are placed in the center of the rowing boat , while the perforated frame portions are placed in the bow and in the stern .5 . The sports rowing boat in accordance with claim 1 , where the modules possess two channels , each with adj acent walls reinforced by reinforcement tape .6 . The sports rowing boat in accordance with claim 5 , where the adj acent walls and the reinforcement tape possess several pairs of eyelets spaced along the module , in the proximity of the ends of the module .7 . The sports rowing boat in accordance with claim 6 , where each pair of eyelets allows the passage of a link strip to couple the frame , where the link strip is a velcro strip .8 . The sports rowing boat in accordance with claim 1 , where the carriage module furthermore possesses cuts or holes of material or inserts of material in the central zone of the carriage module .9 . The sports rowing boat in accordance with claim 1 , where the stern module and the bow module furthermore possess a channel insert that is housed in each channel .10 . The sports rowing boat in accordance with claim 9 , where the channel insert is manufactured from the same material as the modules , protrudes from the walls adj acent to the channel and possesses an upper inclination .11 . The sports rowing boat in accordance with claim 1 , where the intermediate modules that connect to the stern module or bow possess a partial channel insert that is housed in each channel .12 . The sports rowing boat in accordance with claim 11 , where the partial channel insert is short and has a continuous inclination with the channel insert of the stern module or bow .13 . The sports rowing boat in accordance with claim 12 , where the telescopic posts are placed inside the channels that run along the entire modular hull on each side and also run over the channel inserts .. . . .14 . The sports rowing boat m accordance with claim 13 , where the link strips are linked passing over the upper surface of the telescopic posts .15 . The sports rowing boat in accordance with claim 1 , where the stern module furthermore possesses chamfered corners at its exterior end .16 . The sports rowing boat in accordance with claim 1 , where the bow module reduces its width by means of a chamfered cut and has a central channel where a frame section is placed .17 . The sports rowing boat in accordance with claim 16 , where the bow module possesses an endpiece that continues with the reduction of width in a substantially triangular form until forming a tip .18 . The sports rowing boat in accordance with claim 17 , where the endpiece possesses a central channel that continues with the adj acent central channel , where the rest of the frame section is placed .19 . The sports rowing boat in accordance with claim 18 , where the endpiece furthermore possesses one or more caps linked by link strips to cover the central channel in the endpiece .20 . The sports rowing boat in accordance with claim 1 , where the modules possess at their end at least one grooved proj ection, which couples in a coincident manner with at least one inverted grooved proj ection located at the end of the adj acent module .21 . The sports rowing boat in accordance with claim 20 , where the pro j ecti >ns are found on all ends of the modules that couple to other adj acent modules .22 . The sports rowing boat in accordance with claim 1 , where the carriage assembly comprises some rails , some transverse supports , a carriage and a foot stretcher .23 . The sports rowing boat in accordance with claim 22 , where the rails are fixed on the upper surface of the posts of the frame , while the transverse supports are j oined to the telescopic posts through the internal lateral faces of said posts .24 . The sports rowing boat in accordance with claim 23 , where the carriage has bearings that rotate on the rail , while the foot stretcher is fixed on one or more of the transverse supports .25 . The sports rowing boat in accordance with claim 22 , where the carriage assembly is placed at the height where the carriage module of the modular hull is located .26 . The sports rowing boat in accordance with claim 1 , where the support assembly comprises , some arm supports of different lengths and one or more arms .27 . The sports rowing boat in accordance with claim 26 , where the arm supports traverse the lateral faces of the telescopic posts and extend outward to fix the arms .28 . The sports rowing boat in accordance with claim 27 , where the arms are fixed at a determined angle with respect to the longitudinal axis of the rowing boat .29 . The sports rowing boat in accordance with claim 28 , where the distal end of the arms possesses a rowlock that allows rotatably coupling an oar .30 . The sports rowing boat in accordance with claim 1 , characterized in that the modular hull furthermore possesses at least one foot stretcher module , and each module consists of a pair of blocks that are installed on each telescopic post ; where the blocks of the modules possess a slope in their height that varies along the modular hull .31 . The sports rowing boat in accordance with claim 30 , where the blocks are manufactured from panels of floating and light material of foam derived from a polymer and lined in a waterproof material .32 . The sports rowing boat in accordance with claim 30 , where each block possesses a channel formed between two adj acent walls .33 . The sports rowing boat in accordance with claim 32 , where the channel and its adj acent walls are reinforced by reinforcement tape .34 . The sports rowing boat in accordance with claim 32 , where the telescopic posts are placed inside the channels that run along the entire modular hull in each block . 35 . The sports rowing boat in accordance with claim 34 , where the adj acent walls and the reinforcement tape possess several pairs of eyelets spaced along each block .36 . The sports rowing boat in accordance with claim 35 , where the telescopic posts are fixed to each block by means of the pairs of eyelets that allow the passage of link strips .37 . The sports rowing boat in accordance with claim 30 , where : the blocks of the bow module possess a pointed termination and a determined maximum height, the blocks of the stern module possess a flat termination and a determined maximum height, the blocks of the carriage module have the minimum height , and the blocks of the remaining modules form a height transition .38 . The sports rowing boat in accordance with claim 37 , where the modular hull forms an arc with its maximum height in the bow module and stern, and its minimum height in the carriage module .

39. The sports rowing boat in accordance with any of the preceding claims, where all the modules, inserts, caps, frame portions components of the assemblies are joined or coupled in a temporary manner.

40. The sports rowing boat in accordance with any of the preceding claims, where the total weight of the rowing boat is less, the flotation area of the modular hull is greater, and the frontal drag area is less, when compared with that of a conventional sports rowing boat.

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