The Yacht Crane and it lowers the rescue boat /raft on the water by the help of its own weight.
It also has a hydraulic slewing type davit and it would be slewed by accumulator or manual pump driven in case of power failure.
The raft is lowered by means of remote control, that the crew can release and stop the hand brake of the winch from inside of the raft via wire connection to the brake arm and wire spool on the winch.
Alternatively the crew can operate the hand brake on the deck.It can be used as a crane which is used for lifting equipment and goods under the condition of harbor.