Abstract: The invention relates to a floating maritime vessel including at least one hull beneath a deck, the hull extending between a bow and a stern in a longitudinal direction of the vessel, the vessel including, on its lower part, a removable keel and, on its upper part, a conning tower erected above the deck, the keel being able to be descended below the hull and raised back through the hull, the keel including a lower end and an upper end, the upper end of the keel connecting to the hull when the keel is in its lowered position. According to the invention, the conning tower contains a keel-storage space and the keel and the keel-storage space of the conning tower are aligned such that the keel can be raised by upward translation at least partly into the keel-storage space of the conning tower.

Abstract: Disclosed is a measurement system for aquatic environments, including a surface vessel and a submersible device, the submersible device including a hull, propulsion, guide, and sensors for taking measurements. The submersible device can either be launched from the vessel in order to then maneuver underwater independently of the vessel during a remote deployment phase, or be stored in a vessel during a non-deployment phase, the vessel including at least one hull and propulsion and guide, the at least one hull of the vessel including a submerged portion located below a waterline. The submerged portion of the at least one hull of the vessel includes a recess designed to receive at least an upper portion of the hull of the submersible device when the latter is stored in the vessel, the recess being arranged entirely below the waterline so that the submersible device remains completely submerged during storage.

Abstract: A method for connecting a movable connector part to a stationary connector part, the movable part being initially placed on a support and the stationary part being covered by a cap. The method includes gripping the cap by element of a lifting tool (10); depositing the cap (6) on the movable part by element of the lifting tool; and transporting the assembly of the cap and movable part onto the stationary part, by element of the lifting tool, in order to connect the stationary part and the movable part (4) to each other.

Abstract: An optical connector (20) includes a plurality of collimation elements (23a, 23b) which are associated with a plurality of optical fibres (21a, 21b), respectively, and which are carried by a support (24). The support is mounted for rotation in a bearing (27) about a rotation axis (z), the collimation elements (23a) are arranged in the support so as to be equidistant from this rotation axis, and the support has at least one member for angular positioning (28) about the axis. The invention also relates to an optical connection assembly (10) including a first such optical connector and a second optical connector (20?) which is configured to be nested coaxially with the first one. An electrical connector may be provided with such an optical connector, and a connection system may be provided with such an electrical connector.

Abstract: Disclosed is a floating structure for an autonomous watercraft with a keel deployed and recovered on a vessel. The longitudinally elongate structure includes a floating port-side and starboard lateral edges and a submersible bottom submerged when the structure is in the water, the lateral edges and the bottom defining an interior space at least partly submerged when the floating structure is in the water, the lateral edges defining a prow at the front and, at the rear, an opening towards the rear of the floating structure, which opening is downwardly limited by the submersible bottom with at least one longitudinally elongate slot open towards the rear for the passage of the keel, and the floating structure is configured in order that at least the front portion of the autonomous watercraft including the keel can engage by floating inside the interior space, with the keel engaging in the slot.

Abstract: Disclosed is a surface vessel with motorised mechanical propulsion including a fusiform hull and a keel in the bottom part of the hull, the hull having an elongate shape in a longitudinal direction of the vessel, the keel including, at the bottom end of same, a bulb linked to the hull by a linking part of the keel, the maximum width of the linking part being smaller than the maximum width of the bulb, the maximum length of the linking part being smaller than the maximum length of the bulb, the lengths and widths being considered respectively in the longitudinal direction of the vessel and a horizontal transverse direction perpendicular to the longitudinal direction. The hull has a total width to total length ratio of less than 0.2 and a maximum length of less than 20 metres.

Abstract: Disclosed is a master model (1) defining a useful surface having a complex shape, including a set of juxtaposed frames (2a, 2b, 2c), each frame including a panel having a useful edge (8), the frames being disposed parallel and held rigidly connected with predefined spacings such that the useful edges of same form the useful surface. The panel of each frame includes a blind slot (10) forming an opening passing through the thickness, and the frames are rigidly connected by a spar (3, 3a, 3b, etc.) suitable for being inserted (6) in the lengthwise direction (L) of same into the slots and including transverse notches (11) for receiving and holding the frames, each notch being arranged to receive, by a relative transverse translational movement (7) of the spar relative to the frames, the part in question of the panel of each frame.

Abstract: Disclosed is a measurement system for aquatic environments, including a surface vessel and a submersible device, the submersible device including a hull, propulsion, guide, and sensors for taking measurements. The submersible device can either be launched from the vessel in order to then maneuver underwater independently of the vessel during a remote deployment phase, or be stored in a vessel during a non-deployment phase, the vessel including at least one hull and propulsion and guide, the at least one hull of the vessel including a submerged portion located below a waterline. The submerged portion of the at least one hull of the vessel includes a recess designed to receive at least an upper portion of the hull of the submersible device when the latter is stored in the vessel, the recess being arranged entirely below the waterline so that the submersible device remains completely submerged during storage.

Abstract: Disclosed is a method for stiffening plates for ship walls. At least one elongate profile member of laminated composite material and having a transverse cross-section of a predetermined shape over the length thereof is pre-manufactured, the profile member being rigid. Then, a panel including laminated composite materials at least on the surface of at least one of the two main surfaces thereof is used, and the at least one pre-manufactured profile member is assembled and attached together onto one of the main surfaces of the panel. The main surface of the panel receives the profile member including laminated composite material. The profile member has a transverse cross-section with three continuous portions: two flanges having substantially straight cross-sections and interconnected by a web. The flanges and the web in transverse cross-section are supported by separate planes, the plane of the web intersecting the two planes, supporting the flanges, at 90°.

Abstract: System including a dead weight and equipment on a trolling line released from and retrieved to a receiving structure of a vessel, the dead weight including a controllable element for blocking and unblocking the line, so as to immobilize the line relative to the dead weight in the blocked configuration, and to allow the line to run relative to the dead weight in the unblocked configuration; a first detection element for detecting whether or not or not the equipment has moved to a predefined distance from the dead weight; a control element configured, in case of an order to release: —in a step 2L, to release the equipment from the structure, —in a step 3L, when the first detection element detects the equipment has moved to the predefined distance, to then release the dead weight and control the blocking and unblocking element to shift to the blocked configuration.

Abstract: Disclosed is a master model (1) defining a useful surface having a complex shape, including a set of juxtaposed frames (2a, 2b, 2c), each frame including a panel having a useful edge (8), the frames being disposed parallel and held rigidly connected with predefined spacings such that the useful edges of same form the useful surface. The panel of each frame includes a blind slot (10) forming an opening passing through the thickness, and the frames are rigidly connected by a spar (3, 3a, 3b, etc.) suitable for being inserted (6) in the lengthwise direction (L) of same into the slots and including transverse notches (11) for receiving and holding the frames, each notch being arranged to receive, by a relative transverse translational movement (7) of the spar relative to the frames, the part in question of the panel of each frame.

Abstract: System including a dead weight and equipment on a trolling line released from and retrieved to a receiving structure of a vessel, the dead weight including a controllable element for blocking and unblocking the line, so as to immobilize the line relative to the dead weight in the blocked configuration, and to allow the line to run relative to the dead weight in the unblocked configuration; a first detection element for detecting whether or not or not the equipment has moved to a predefined distance from the dead weight; a control element configured, in case of an order to release: —in a step 2L, to release the equipment from the structure, —in a step 3L, when the first detection element detects the equipment has moved to the predefined distance, to then release the dead weight and control the blocking and unblocking element to shift to the blocked configuration.