Modular ammunition launching device including a device for mitigating the pyrotechnic jet of a munition

Abstract

Modular Munition Launching Device Including a Pyrotechnic Jet Mitigation Device for Munitions. The modular munitions (20) launching system (1) comprises at least one munitions receiving chamber (4) forming at least one firing channel (18) for a munition (20) emitting a pyrotechnic jet (24) in a longitudinal direction (L). The modular system further comprises at least one mitigation device (32). This mitigation device (32) comprises at least one jet-breaking element (35) arranged to separate the pyrotechnic jet (24) from the munition (20) into at least two sub-jets (35), each extending in a direction different from the other sub-jet (35) and from the longitudinal direction (L). Figure for abbreviation: 4

Description

Title of the invention: Modular ammunition launching device comprising a device for attenuating the pyrotechnic jet of a munition

[0001] The present invention relates to a modular ammunition launching system, of the type comprising at least one ammunition receiving box forming at least one firing channel for a munition emitting a pyrotechnic jet in a longitudinal direction, the modular system further comprising at least one attenuation device.

[0002] The invention also relates to a naval platform comprising at least one such modular munitions launching system.

[0003] Such modular munitions launching systems are generally mounted on a vessel, such as a naval platform or a vehicle, and are configured to allow the launching of different types of munitions in order to adapt the vessel's or vehicle's response to a threat or its environment. Such modular launching systems are thus, for example, adapted to selectively launch rockets, missiles, or even attack and / or observation aircraft, such as drones.

[0004] When certain munitions are fired, they emit a pyrotechnic jet outwards from the modular munitions launching system. Such a pyrotechnic jet has a high temperature and pressure and results in the high-speed ejection of solid or molten particles.

[0005] Due to the limited space available on a naval platform, the pyrotechnical discharge from the munitions impacts one or more surfaces of components or walls extending around the modular launching system in a concentrated area, resulting in damage to these surfaces, especially during repeated firings. Furthermore, the pyrotechnic discharge from one munition is likely to damage other munitions placed in the receiving caisson.

[0006] One of the aims of the invention is to overcome these drawbacks by proposing a modular ammunition launching system that mitigates the effect of the pyrotechnic jet generated when firing a munition.

[0007] To this end, the invention relates to a modular ammunition launching system of the aforementioned type, in which said attenuation device comprises at least one jet-breaking element arranged to separate the pyrotechnic jet from the munition into at least two sub-jets, each extending in a different direction from the other sub-jet and from the longitudinal direction.

[0008] By breaking up the pyrotechnic jet of a munition and dividing it into several sub-jets, it is possible to diffuse the impact of the pyrotechnic jet over a surface and thus prevent it from being concentrated in a particular area. The change in direction of the sub-jets also has the advantage of creating pressure losses in each sub-jet. These pressure losses result in a deceleration of the gas and particle flow, and therefore a reduction in surface damage. Furthermore, the effect of each sub-jet on the impacted area is attenuated compared to the complete pyrotechnic jet. In addition, the attenuation device allows for the evacuation or trapping of solid or molten particles contained in the pyrotechnic jet, so that these particles cannot damage other munitions received in the receiving container.

[0009] The modular launch system according to the invention may comprise one or more of the following features, considered alone or in any technically feasible combination: - the attenuation device comprises a main body including a tubular wall extending along an axis substantially parallel to the longitudinal direction between an inlet of the pyrotechnic jet and an outlet of the pyrotechnic jet, the jet-breaking element extending at least in or opposite the outlet along the longitudinal direction and comprising at least one deflection surface inclined with respect to the axis of the main body; - the jet-breaking element comprises a plurality of blades extending around the axis of the main body, each blade comprising a deflection surface extending from the axis of the main body to the tubular wall of the main body, the blades being spaced apart from each other and defining between them a plurality of passage channels for the sub-jets of the pyrotechnic jet at the exit of the main body; - the passage channels orient the sub-jets in divergent directions away from the axis of the main body in the longitudinal direction going from the inlet to the outlet of the main body; - the deflection surface of the jet-breaking element has a substantially conical shape extending along the axis of the main body, said deflection surface extending opposite the outlet of the main body and widening in the direction from the inlet to the outlet of the main body; - the jet-breaking element is mounted on a shaft extending into the main body along the axis of said main body, the jet-breaking element being movable in translation on said shaft between a closed position, in which the jet-breaking element closes the outlet of the main body, and an open position, in which the jet-breaking element is moved away from the outlet of the main body, the element jet breaker moving from the closed position to the open position under the effect of the pyrotechnic jet; - the attenuation device includes a constraint element forcing the jet-breaking element towards the closed position; - the receiving chamber forms a plurality of ammunition firing channels, the jet-breaking element of the attenuation device extending in the path of the pyrotechnic jets from the munitions placed in the firing channels, each pyrotechnic jet being separated into at least two sub-jets each extending in a different direction from the other sub-jet and from the longitudinal direction by said jet-breaking element; - the jet-breaking element comprises at least two deflection surfaces extending along different deflection directions from each other and from the longitudinal direction, each deflection surface guiding one of the sub-jets of the pyrotechnic jets along their deflection direction.

[0010] According to another aspect, the invention relates to a naval platform comprising at least one modular munitions launching system as described above.

[0011] The invention will become clearer upon reading the following description, given solely by way of non-limiting example, and made with reference to the accompanying drawings in which:

[0012] [Fig-1] - [Fig.1] is a schematic perspective representation of a system modular ammunition launching system

[0013] [Fig.2] - [Fig.2] is a schematic perspective representation of a plurality of attenuation devices according to an embodiment of the invention, which can be used in a modular launch system of the [Fig.1],

[0014] [Fig.3] - [Fig.3] is a schematic perspective representation of one of the mitigation devices of the [Fig.2],

[0015] [Fig.4] - [Fig.4] is a schematic perspective representation of the effect produced by a attenuation device of the [Fig.2],

[0016] [Fig.5] - [Fig.5] is a schematic perspective representation of a device attenuation according to another method of the invention,

[0017] [Fig.6] - [Fig.6] is a schematic cutaway perspective representation of the attenuation device of the [Fig.5],

[0018] [Fig.7] - [Fig.7] is a schematic perspective representation of a plurality of mitigation devices according to another embodiment of the invention, and

[0019] [Fig.8] - the [Fig.8] is a schematic perspective representation of a plurality of attenuation devices according to yet another embodiment of the invention.

[0020] With reference to [Fig. 1], a modular munitions launching system 1 is described, comprising mainly a chassis 2 and at least one receiving pod. 4. A modular launch system 1 is installed, for example, on a naval platform, particularly one used for military purposes, such as a naval vessel, warship, or other similar vessel. However, it is understood that the modular system 1 is also suitable for installation on other types of platforms, such as a land-based military vehicle or a fixed naval or land-based vessel. Such a modular launch system 1 is designed to launch or fire munitions at a distance from the platform on which it is installed, including different types of munitions depending on the target(s) identified around the platform. These munitions include, for example, rockets, missiles, and other types of ammunition. They also include attack and / or observation aircraft, such as drones.

[0021] The chassis 2 is arranged to receive the receiving box 4 so that the ammunition contained in the receiving box 4 can be fired when the receiving box 4 is received in the chassis 2. For this purpose, the chassis 2 defines at least one housing for the receiving box 4. According to one embodiment, the chassis 2 is arranged to receive several receiving boxes 4 and thus defines as many housings 6.

[0022] The frame 2, for example, has a substantially parallelepiped shape and is delimited by a plurality of walls defining the housing(s). More specifically, the frame 2 extends along a longitudinal direction L, corresponding to the length of the frame 2, a transverse direction T, substantially perpendicular to the longitudinal direction L and corresponding to the width of the frame 2, and along an elevation direction Z, substantially perpendicular to the longitudinal direction L and the transverse direction T and corresponding to the height of the frame 2. The frame 2 is delimited by a lower wall 6 and an upper wall 8 separated from each other along the elevation direction Z, and by two lateral walls 10 separated from each other along the transverse direction T and connecting the lower wall 6 and the upper wall 8. The frame 2 is open at at least one of its longitudinal ends so as to provide access to the housing(s) 6.According to one embodiment of [Fig.1], the chassis 2 comprises two lower housings and two upper housings 6 to receive four receiving boxes 4.

[0023] When one or more receiving pods 4 are received in the corresponding housing(s), the ammunition can be fired from the open longitudinal end of the chassis 2. Advantageously, the firing direction of this ammunition is adjustable relative to the platform on which the modular launching system 1 is installed. For this purpose, the modular launching system 1 includes, for example, a base 12 on which the chassis 2 is mounted in a movable rotational manner about a first axis of rotation RI extending along the transverse direction T. Such rotation makes it possible to adjust the firing direction along the elevation direction Z. In other words, this Rotation allows adjustment of the firing angle of the munitions, for example, relative to the deck of the naval platform on which the modular launch system 1 is installed. In one embodiment, the base 12 is itself mounted to rotate about a second axis of rotation R2 extending along the elevation direction Z. Such rotation allows the firing direction of the munitions to be oriented along the transverse direction, i.e., to the right or left of the platform receiving the modular launch system 1. The base 12, for example, has the shape of a fork comprising two arms 14 spaced apart along the transverse direction T and receiving the chassis 2 between them.Each side wall 10 of the chassis 2 is articulated to one of the arms 14 around the first axis of rotation RI and the arms 14 are mounted on a base 16 in a movable way in rotation around the second axis of rotation R2, the base 16 being integral with the platform receiving the modular launch system 1.

[0024] The ammunition receiving box 4 is arranged to receive ammunition 20 of a certain type, such as rockets or missiles as described previously. For this purpose, the receiving box 4 has the shape of a box, for example, substantially parallelepiped-shaped, defining one or more firing channels 18, each firing channel 18 receiving a piece of ammunition 20 (only one is shown in [Fig. 1]) ready to be fired. When the receiving box 4 is received into a housing in the chassis 2, the firing channel 18 opens outwards from the modular launch system 1 at the open longitudinal end of the chassis 2, as shown in [Fig. 1].

[0025] Each firing channel 18 has, for example, a substantially tubular shape extending along the longitudinal direction L. From one receiving box 4 to another, the firing channels 18 are not necessarily identical, but are adapted, in particular in terms of dimensions, more particularly diameter, to the munitions 20 received in the firing channels 18.

[0026] At least some of the munitions 20 are propelled, for example by means of a propellant 22, which results in the generation of a pyrotechnic jet 24 in the firing channels 18 receiving these munitions during their firing. In a firing channel 18, such a pyrotechnic jet 24 extends along the longitudinal direction L opposite the head of the munition 20, i.e., the pyrotechnic jet 24 is directed towards a rear end 26 of the firing channel 18 opposite a mouth 28 of the firing channel 18 through which the munition 20 is fired. The pyrotechnic jet 24 is formed, for example, of combustion gases at high temperature and high pressure, the gas further containing solid or molten particles. Therefore, this pyrotechnic jet 24 is ejected through the rear end 26 of the firing channel 18 and impacts the surface 30 located opposite the modular launching system 1 and on the opposite side of the mouth 28, for example a wall or the deck of the naval platform on which the modular launch system 1 is installed.

[0027] To prevent this surface 30 from being damaged by the pyrotechnic jet, the modular launching system 1 includes at least one attenuation device 32 arranged to break up the pyrotechnic jet 24, i.e., to separate this jet into at least two sub-jets 34 whose impact on the surface 30 is reduced compared to the pyrotechnic jet 24 as a whole. For this purpose, the attenuation device 32 includes at least one jet-breaking element 35 arranged to separate the pyrotechnic jet 24 extending along the longitudinal direction L into at least two sub-jets 34, each extending in a direction different from the other sub-jet 34 and from the longitudinal direction L, as shown in [Fig. 4]. The change in direction of the sub-jets 34 also has the advantage of creating pressure losses in each sub-jet.These pressure losses result in a deceleration of the gas and particle flow and therefore a reduction in surface damage 30.

[0028] According to the embodiments shown in Figs. 2 to 6, the modular launch system 1 includes a damping device 32 per firing channel 18, while according to the embodiments of Figs. 7 and 8 which will be described later, the modular launch system 1 includes a damping device 32 for a plurality of firing channels 18.

[0029] A damping device 32 according to the embodiment shown in Figs. 2 and 3 will now be described.

[0030] The attenuation device 32 comprises a main body 36 including a tubular wall extending along an axis substantially parallel to the longitudinal direction L between an inlet 38 of the pyrotechnic jet 24 and an outlet 40 of the pyrotechnic jet 24. The main body 36 has, for example, a diameter substantially equal to that of a firing channel 18, and the inlet 38 of the pyrotechnic jet 24 is positioned opposite the rear end 26 of the firing channel 18 so that the pyrotechnic jet 24 exiting through the rear end 26 of the firing channel 18 enters the main body 36 through the inlet 38 and is guided through the main body 36 to the outlet 40 of the pyrotechnic jet 24. The main body 36 and the firing channel 18 are, for example, more particularly arranged so that the entire pyrotechnic jet 24 enters the main body 36.For this purpose, the main body 36 is, for example, mounted directly on the rear end 26 of the firing channel 18 or is placed immediately opposite the rear end 26, for example by being pressed against it. According to the embodiment of [Fig. 2], each firing channel 18 opens into a damping device 32, the main bodies 36 of these damping devices 32 being mounted on one or more plates 42 mounted on the chassis 2 and placed against a receiving box 4 on the side of the rear end 26 of the firing channels 18. Such an assembly allows for the placement of... the attenuation devices 32 immediately at the rear end 26 of the firing channels 18 without mechanical connection between the receiving box 4 and the attenuation devices 32, which facilitates the extraction of the receiving box 4 from the chassis 2 during ammunition reloading operations or replacement of the receiving box 4.

[0031] The jet-breaking element 35 extends at least in or opposite the outlet 40 in the longitudinal direction L and includes at least one deflection surface 44 inclined with respect to the axis of the main body 36. The shape of such a deflection surface 44 is arranged to deflect the parts of the pyrotechnic jet 24 flowing along this surface with respect to the longitudinal direction L so as to form at least two sub-jets 34 extending in two different directions from each other and different from the longitudinal direction L.

[0032] According to the embodiment shown in Figs. 2 and 3, the jet-breaking element 35 comprises several deflection surfaces 44 extending in different directions within the main body 36 so as to deflect different parts of the pyrotechnic jet 24 in different directions. To this end, as particularly visible in [Fig. 3], the jet-breaking element 35 comprises a plurality of blades 46 extending around the axis of the main body 36, each blade 46 comprising a deflection surface 44 extending from the axis of the main body 36 to the tubular wall of the main body 36. The blades 46 are spaced apart from one another and define between them a plurality of channels for the passage of the sub-jets 34 of the pyrotechnic jet 24 to the outlet 40 of the main body 36.The various passage channels extend in different directions so that the sub-jets 34 exiting these passage channels are oriented in these different directions, which are also different from the longitudinal direction L. Thus, the sub-jets 34 are oriented in divergent directions away from the axis of the main body 36 at the outlet 40 of the main body 36. The blades, for example, have curved deflection surfaces 44 that are substantially parallel to each other so as to present a corolla shape at the outlet 40 of the main body 36, the blades forming the "petals" of the corolla and the passage channels extending between these different petals. It is understood that the shape of the blades 46 shown in [Fig. 3] is given by way of example and that other shapes are conceivable. In particular, in [Fig.3], all the blades have an identical shape, but blades with different shapes from each other can also be considered.

[0033] According to one embodiment, the blades 46 extend substantially over the entire length of the main body 36, from the inlet 38 to the outlet 40 thereof and form a spiral around the axis of the main body 36.

[0034] According to the embodiment shown in Figs. 5 and 6, apart from the jet-breaking element 35, the attenuation device 32 has the same structure as that of the embodiment shown in Figs. 2 and 3. Thus, the attenuation device 32 also comprises a main body 36 including a tubular wall with a diameter substantially equal to that of a firing channel 18, and each firing channel 18 is provided with an attenuation device 32. Only the differences between the attenuation device 32 of the embodiment shown in Figs. 5 and 6 and that of Figs. 2 and 3 will now be described.

[0035] The deflection surface 44 of the jet-breaking element 35 has a substantially conical shape extending along the axis of the main body 36 opposite the outlet 40 of the main body 36. The deflection surface 44 flares out in the direction from the inlet 38 to the outlet 40 of the main body 36, that is to say, its diameter increases as it moves away from the outlet 40 of the main body 36. Thus, the pyrotechnic jet 24 flowing along the deflection surface 44 "spreads out" in a plurality of directions departing from the longitudinal direction L in the direction from the inlet to the outlet of the main body 36, as shown in [Fig. 4]. In other words, the pyrotechnic jet 24 separates into an infinite number of sub-jets 34 moving away from each other as they move away from the outlet 40 of the main body 36.

[0036] As particularly visible in [Fig. 6], the jet-breaking element 35 is, for example, mounted on a shaft 48 extending into the main body 36 along the axis of the main body 36. The shaft 48 is, for example, connected to the tubular wall of the main body 36 by a plurality of arms 50 extending substantially radially from the tubular wall to the shaft 48. The shaft 48 projects out of the outlet 40 of the main body 36 in the longitudinal direction L, and the jet-breaking element 35 is mounted on the end of the shaft 48 so as to form a passage between the outlet 40 of the main body 36 and the deflection surface 44 of the jet-breaking element 35.

[0037] According to one embodiment, the jet-breaking element 35 is movable in translation along the longitudinal direction L on the shaft 48 between a closed position (not shown), in which the jet-breaking element 35 closes the outlet 40 of the main body 36, and an open position (Figs. 5 and 6), in which the jet-breaking element 35 is moved away from the outlet 40 of the main body 36 and defines the aforementioned passage between the outlet 40 and the deflection surface 44. The movement of the jet-breaking element 35 from the closed position to the open position is triggered when the ammunition present in the corresponding firing channel 18 is fired under the effect of the pyrotechnic jet 24 pushing on the deflection surface 44 of the jet-breaking element 35.A constraint element 52 can further be arranged to constrain the jet-breaking element 35 towards its closed position so as to return the jet-breaking element 35 to the closed position after the pyrotechnic jet 24 ceases to apply a force on the deflection surface 44 displacing the jet-breaking element 35 towards the open position. The constraint element 52 is by . An example is formed by a helical spring extending around the shaft 48 and applying a force on the jet-breaking element 35 along the longitudinal direction L in the direction from the outlet 40 to the inlet 38 of the main body, as shown in Figs. 5 and 6. Thus, the attenuation device 32 according to this embodiment acts as a valve venting and dispersing the pyrotechnic jet 24 during the firing of a munition 20.

[0038] The embodiments shown in Figs. 7 and 8, in which the same attenuation device 32 is used for a plurality of firing channels 18, will now be described.

[0039] According to these embodiments, several firing channels 18, or even all the firing channels 18 of one or more receiving pods 4, open into the main body 36 of the attenuation device 32, the shape of which is arranged accordingly. Thus, the main body 36 is, for example, formed by a frame, or a structure, mounted on the longitudinal end of the chassis 2 opposite the opening through which the munitions 20 exit the modular launching system 1 during firing.

[0040] According to these embodiments, the jet-breaking element 35 of the attenuation device 32 extends along the path of the pyrotechnic jets 24 emitted from the munitions 20 placed in the firing channels 18 opening into the main body 36. Each pyrotechnic jet 24 is then separated into at least two sub-jets 34, each extending in a different direction from the other sub-jet and from the longitudinal direction L, by the same jet-breaking element 35 common to the different pyrotechnic jets 24. The deflection surface(s) 44 extend, for example, along the transverse direction T and along the elevation direction Z across the main body 36, and their shape is arranged so that all the pyrotechnic jets 24 meet and flow along a deflection surface 44 and separate into two or more sub-jets 34 extending in different directions from each other and from the longitudinal direction L.Thus, the jet-breaking element 35 comprises at least two deflection surfaces 44 extending along different deflection directions from each other and from the longitudinal direction, each deflection surface 44 guiding one of the sub-jets 34 of the pyrotechnic jets 24 according to their deflection direction.

[0041] According to the embodiment shown in [Fig. 7], the jet-breaking element 35 comprises a plurality of deflection surfaces 44 curved upwards and downwards along the elevation direction Z so as to disperse the sub-jets 34 along the elevation direction Z. More particularly, according to the example in [Fig. 7], the deflection surfaces 44 extending opposite one or more upper rows of firing channels 18 are curved upwards in the direction from the inlet 38 to the outlet 40, and the deflection surfaces 44 extending opposite one or more lower rows of firing channels 18 are curved downwards in the direction from the inlet 38 towards the outlet 40. Thus, the upward-facing deflection surfaces 44 form channels between them directing the pyrotechnic jets 24 upwards and the downward-facing deflection surfaces 44 form channels between them directing the pyrotechnic jets 24 downwards.

[0042] According to the embodiment shown in [Fig. 8], the jet-breaking element 35 comprises a plurality of deflection surfaces 44, each comprising at least one change of direction from the inlet to the outlet of the main body 36. Thus, each deflection surface 44 comprises, for example, a first segment oriented upwards along the elevation direction Z and a second segment oriented downwards along the elevation direction Z. Each deflection surface 44 thus has the shape of a downward-facing V. The deflection surfaces 44 then form channels oriented first upwards and then downwards. Such a shape promotes the bursting of the pyrotechnic jets 24 in different directions when they strike the deflection surfaces 44.In addition, the channels, by changing direction, form particle traps, in which the solid or molten particles contained in the pyrotechnic jets 24 are retained when the pyrotechnic jets 2 circulate in the channels.

[0043] It should again be noted that the shapes of deflection surfaces 44 shown in Figs 7 and 8 are given only as examples and that other shapes can be considered.

[0044] By splitting the pyrotechnic jets 24 into several sub-jets 34 extending in different directions, the attenuation device(s) 32 prevent the concentration of the pyrotechnic jet(s) 24 in a small area relative to the modular launching system 1. Thus, the impact area of ​​the pyrotechnic jet(s) 24 is spread out, reducing its harmful effect on the affected wall(s). Furthermore, the pyrotechnic jet 24 from a munition 20 is efficiently evacuated so that it does not risk damaging munitions 20 present in other firing channels 18.

Claims

Demands

1. Modular launch system (1) for munitions (20) comprising at least one receiving chamber (4) for munitions forming at least one firing channel (18) for a munition (20) emitting a pyrotechnic jet (24) in a longitudinal direction (L), the modular system further comprising at least one attenuation device (32), characterized in that said attenuation device (32) comprises at least one jet-breaking element (35) arranged to separate the pyrotechnic jet (24) from the munition (20) into at least two sub-jets (35) each extending in a different direction from the other sub-jet (35) and from the longitudinal direction (L).

2. Modular launch system according to claim 1, wherein the attenuation device (32) comprises a main body (36) including a tubular wall extending along an axis substantially parallel to the longitudinal direction (L) between an inlet (38) of the pyrotechnic jet (24) and an outlet (40) of the pyrotechnic jet (24), the jet-breaking element (35) extending at least in or opposite the outlet (40) along the longitudinal direction (L) and comprising at least one deflection surface (44) inclined with respect to the axis of the main body (36).

3. Modular launch system according to claim 2, wherein the jet-breaking element (35) comprises a plurality of blades (46) extending around the axis of the main body (36), each blade (46) comprising a deflection surface (44) extending from the axis of the main body (36) to the tubular wall of the main body (36), the blades (46) being spaced apart from each other and defining between them a plurality of channels for the passage of the sub-jets (34) of the pyrotechnic jet (24) to the outlet (40) of the main body (36).

4. Modular launching system according to claim 2, wherein the passage channels orient the subjets (34) in divergent directions away from the axis of the main body (36) in the longitudinal direction (L) from the inlet (38) to the outlet (40) of the main body (36).

5. A modular launch system according to claim 2, wherein the deflection surface (44) of the jet-breaking element (35) has a substantially conical shape extending along the axis of the main body (36), said deflection surface (44) extending in view of the exit (40) of the main body (36) and widening in the direction from the entrance (38) to the exit (40) of the main body (36).

6. Modular launch system according to claim 5, wherein the jet-breaking element (35) is mounted on a shaft (48) extending in the main body (36) along the axis of said main body (L), the jet-breaking element (35) being movable in translation on said shaft (48) between a closed position, in which the jet-breaking element (35) closes the outlet (40) of the main body (36), and an open position, in which the jet-breaking element (35) is moved away from the outlet (40) of the main body (36), the jet-breaking element (35) moving from the closed position to the open position under the effect of the pyrotechnic jet (24).

7. Modular launch system according to claim 6, wherein the attenuation device (32) comprises a constraint element (52) constraining the jet-breaking element (35) towards the closed position.

8. Modular launch system according to claim 1, wherein the receiving box (4) forms a plurality of munition firing channels (18), the jet-breaking element (35) of the attenuation device (32) extending in the path of the pyrotechnic jets (24) from the munition (20) placed in the firing channels (18), each pyrotechnic jet (24) being separated into at least two sub-jets (34) each extending in a different direction from the other sub-jet (34) and from the longitudinal direction (L) by said jet-breaking element (35).

9. Modular launch system according to claim 8, wherein the jet-breaking element (35) comprises at least two deflection surfaces (44) extending in different deflection directions from each other and from the longitudinal direction (L), each deflection surface (44) guiding one of the sub-jets 34) of the pyrotechnic jets (24) along their deflection direction.

10. Naval platform comprising at least one modular launch system (1) according to any one of claims 1 to 9.

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