The PRH davit is a freestanding deck mounted davit consisting of a base frame, davit arm, cylinders, winch and hydraulic power pack unit.

The system has been designed to meet the latest IMO requirements and is suitable for safe and efficient launching and recovery of a fully manned fast rescue boat even under severe and adverse weather conditions (wind force 6 on the Beaufort-scale, in association with a significant wave height of at least 3 m).
The PRH series are all provided with a constant wire tensioning system and hydro-pneumatic shock absorber.

The launching procedure can be controlled in two (2) ways, i.e.:
From control stand (normal procedure for rescue operations);
From inside the rescue boat (emergency operations).

During normal operations, all system functions are hydraulically controlled and actuated from the davit’s operating console which is placed on deck near the railing.

In case of an emergency, pivoting out the rescue boat from its stowed into launch position is realised by means of so-called “stored-power” obtained from an accumulator.
Lowering is realised by means of gravity.
Both motions, pivoting and lowering are controlled from within the rescue boat by means of remote control pull wires.

Recovery of the rescue boat is realised by means of the hydraulic driven winch.
In case of a power failure or malfunctioning of the electric system, hoisting can also be done manually by using the ratchet handle of the winch.

Since the safe working load and outreach of the davit are normally determined by the size of the rescue boat, NED-DECK MARINE have chosen for a limited range of standard designs which can be adapted to some extent in order to meet individual and specific needs.

The PRH series meets the latest IMO/SOLAS requirements and recommendations on Ro-Ro Passenger ships, LSA Code and the European Council Directive 96/98 EC on Marine Equipment (M.E.D.).