Systems and methods are disclosed herein for a pressure tolerant energy system. The pressure tolerant energy system may comprise a pressure tolerant cavity and an energy system enclosed in the pressure tolerant cavity configured to provide electrical power to the vehicle. The energy system may include one or more battery cells and a pressure tolerant, programmable management circuit. The pressure tolerant cavity may be filled with an electrically-inert liquid, such as mineral oil. In some embodiments, the electrically-inert liquid may be kept at a positive pressure relative to a pressure external to the pressure tolerant cavity. The energy system may further comprise a pressure venting system configured to maintain the pressure inside the pressure tolerant cavity within a range of pressures. The pressure tolerant cavity may be sealed to prevent water ingress.

Systems and methods are disclosed herein for a pressure tolerant energy system. The pressure tolerant energy system may comprise a pressure tolerant cavity and an energy system enclosed in the pressure tolerant cavity configured to provide electrical power to the vehicle. The energy system may include one or more battery cells and a pressure tolerant, programmable management circuit. The pressure tolerant cavity may be filled with an electrically-inert liquid, such as mineral oil. In some embodiments, the electrically-inert liquid may be kept at a positive pressure relative to a pressure external to the pressure tolerant cavity. The energy system may further comprise a pressure venting system configured to maintain the pressure inside the pressure tolerant cavity within a range of pressures. The pressure tolerant cavity may be sealed to prevent water ingress.

A system may be used to survey subsea sites using a remotely operated vehicle (ROV), an autonomous surface vessel (ASV) configured to serve as a communications link to subsea assets and relay data from the control station to the subsea assets where the ASV may house an autonomous or teleoperated ROV and transport that asset to an inspection site and an autonomously operative vehicle (AUV) comprising a survey system and electronics for the detection of subsea seeps or other formations and/or objects.

A system may be used to survey subsea sites using a remotely operated vehicle (ROV), an autonomous surface vessel (ASV) configured to serve as a communications link to subsea assets and relay data from the control station to the subsea assets where the ASV may house an autonomous or teleoperated ROV and transport that asset to an inspection site and an autonomously operative vehicle (AUV) comprising a survey system and electronics for the detection of subsea seeps or other formations and/or objects.

An apparatus (1) for handling daughter boats (2) on a mother vessel comprising one davit assembly positioned atop a stationary cradle (5), each of which is located near a side edge (11a, 11b) of a deck (11) of the vessel for launching and retrieving the boats (2) from and onto the stationary cradle (5) characterised in that the apparatus has a plurality of longitudinally movable cradles (7) on the deck (11) of the vessel for securedly holding plurality of boats thereon and in that the longitudinally movable cradles can move back and forth longitudinally and lift up vertically to transfer a boat (2) onto or to receive a boat (2) from, one transversely movable cradle (4) which can transversely move back and forth for placing a boat (2) onto or for receiving a boat (2) from, the longitudinal cradles (7) and any one stationary cradle (5). The invention also relates to a method for launching and retrieving boats from a mother vessel.

An apparatus (1) for handling daughter boats (2) on a mother vessel comprising one davit assembly positioned atop a stationary cradle (5), each of which is located near a side edge (11a, 11b) of a deck (11) of the vessel for launching and retrieving the boats (2) from and onto the stationary cradle (5) characterised in that the apparatus has a plurality of longitudinally movable cradles (7) on the deck (11) of the vessel for securedly holding plurality of boats thereon and in that the longitudinally movable cradles can move back and forth longitudinally and lift up vertically to transfer a boat (2) onto or to receive a boat (2) from, one transversely movable cradle (4) which can transversely move back and forth for placing a boat (2) onto or for receiving a boat (2) from, the longitudinal cradles (7) and any one stationary cradle (5). The invention also relates to a method for launching and retrieving boats from a mother vessel.

A boat includes a hull having a movable stern platform which can be lowered into the water so as to allow to drop or retrieve a small vessel associated with the boat into/from such water. The stern platform includes two movable parts differently from each other.

In a system (1) for launching, and recovering, a daughter boat (3) from a stern of a mother ship (2), there is provided a telescopic stern ramp of the mother ship. In the telescopic stern ramp, a landing frame (5) has a telescopic retracted position and a telescopic extended position. Furthermore, the landing frame is reciprocally pivotable between said telescopic extended position and a boat landing pivot position. During a boat recovering operation, the boat landing pivot position of the landing frame allows for reliable and quick fastening of the daughter boat to the mother ship. The telescopic retracted position of the landing frame allows for stowing the daughter boat in the stern area of the mother ship.

In a system (1) for launching, and recovering, a daughter boat (3) from a stern of a mother ship (2), there is provided a telescopic stern ramp of the mother ship. In the telescopic stern ramp, a landing frame (5) has a telescopic retracted position and a telescopic extended position. Furthermore, the landing frame is reciprocally pivotable between said telescopic extended position and a boat landing pivot position. During a boat recovering operation, the boat landing pivot position of the landing frame allows for reliable and quick fastening of the daughter boat to the mother ship. The telescopic retracted position of the landing frame allows for stowing the daughter boat in the stern area of the mother ship.

Systems and methods for adding buoyancy to an object are described herein. A buoyant material may be enclosed inside a flexible container, heated, and inserted into a free flooded cavity inside the object. The flexible container may then be formed to the shape of the cavity. After the flexible container is formed to the shape of the cavity, the flexible container may be cooled. The flexible container may hold a pre-determined amount of the syntactic material that provides a fixed amount of buoyancy. According to another aspect, systems and methods for packing a vehicle are described herein. In some embodiments, a buoyant material may be molded into the shape of a hull of a vehicle, and a plurality of cutouts may be extracted from the buoyant material which are specifically designed to incorporate one or more instruments.