The hull is divided into 26 watertight compartments. Void spaces are filled with buoyant materials, giving reserve buoyancy if the boat is holed. Powerful twin diesel engines provide the propulsion. There are two survivor's cabins below deck containing rescue equipment including first aid gear, stretchers, emergency rations and blankets. An inflatable boat and life raft are carried.
Intercom links the flying bridge, the wheel house and deck.
Inside the wheel house there is a seat with safety belts and arm rests, for each member of the crew. There are special positions for the coxswain, navigator, radio operator, mechanic and crew members and provision for a doctor. A comprehensive range of communications and navigation equipment includes radar, decca navigator, GPS satellite navigator, VHF and MF radios, VHF and MF automatic direction finders and echo sounders. The radar scanner has been made watertight so that it will continue to work after the lifeboat has self righted. 18.5 knots Fuel capacity 620 imp.