Hydraulic Telescopic Crane Have compact construction and can telescope to reduce the overall size when stored to minimize occupying space on board.
Marine Hydraulic Deck Crane
The single arm rescue boat davit is a single arm slewing type davit,and it lowers the boat on the water with the help of its own weight.
This single arm rescue boat davit with crane uses hydraulic drive rotary type,by its own gravity of the boat to make it down to the water,which could make the boat slew to outboard in case of losing of the power supply.