Multiple autonomous underwater vehicles (AUVs) are operated by a host platform by configuring the AUVs with intermediate nodes (such as unmanned surface vehicles (USVs)) so as to allow the host platform to manage multiple AUVs. The intermediate nodes act as a relay for communications between the host platform and the AUVs allowing the host platform to scale to higher numbers of vehicles thus simultaneously operating the entire fleet of AUVs. The AUVs may provide underwater mapping data. The host platform may be stationary. The host platform may communicate with the intermediate nodes by satellite.

The present invention relates to a method of providing an adjustable arm davit apparatus with height adjustable feature including, a base member, a shock absorber, a boom member, an adjustable arm, a winch assembly and a cylinder assembly. The boom member comprises a first member hingedly mounted on the base member and a second member mounted on the first member to adjust a height of the apparatus via the cylinder assembly disposed at the boom member. The adjustable arm is engaged to frontal ends of the boom member. The winch assembly positioned on the boom member for supplying a cable via a plurality of pulleys to attach the target object. The winch assembly is actuated to raise or lower the target object from the target location.

The present invention relates to a method of providing an adjustable arm davit apparatus with height adjustable feature including, a base member, a shock absorber, a boom member, an adjustable arm, a winch assembly and a cylinder assembly. The boom member comprises a first member hingedly mounted on the base member and a second member mounted on the first member to adjust a height of the apparatus via the cylinder assembly disposed at the boom member. The adjustable arm is engaged to frontal ends of the boom member. The winch assembly positioned on the boom member for supplying a cable via a plurality of pulleys to attach the target object. The winch assembly is actuated to raise or lower the target object from the target location.

A lifeboat launch control system. The lifeboat launch control system has a wheel trunk that runs along the side of a ship. An axle box is vertically movable in the wheel trunk. The axle box has a pair of wheels on opposing sides of a bar. A shaft is removably inserted into the bar. The shaft is removable from the bar by a handle. When the shaft is removed from the bar, the lifeboat is released from the ship.

A lifeboat launch control system. The lifeboat launch control system has a wheel trunk that runs along the side of a ship. An axle box is vertically movable in the wheel trunk. The axle box has a pair of wheels on opposing sides of a bar. A shaft is removably inserted into the bar. The shaft is removable from the bar by a handle. When the shaft is removed from the bar, the lifeboat is released from the ship.

The invention provides a system for transporting object from a sea level position to an elevated position on a structure, wherein the sea level position is movable in relation to the elevated position. The system comprises an elongated guide device configured to be arranged to the structure in one end and to extend below the sea level with a second end, an attachment device configured to be arranged on said object and for attaching said object to the elongated guide device, wherein the attachment device is configured to allow a relative movement between the attachment device and the elongated guide device along a first direction parallel to the extension direction of the guide device and a lifting device configured to transport the object from the sea level position to the elevated position. The system is characterized in that a weight is arranged to the second end of the guide device below the sea level for stabilizing the guide device, wherein the second end is a free end and the weight is a free weight.

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.

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.