The £4.3m vessel's hull up to and including the weather deck and all transverse watertight bulkheads are constructed from welded mild steel. The marine grade aluminium alloy superstructure is welded to the hull using explosively bonded structural transitional joints to obviate corrosion due to electrolytic action. Below deck the hull is divided into five watertight compartments, including main and auxiliary machinery spaces and accommodation. Special care has been taken to provide a high standard of living accommodation for the crew of 12 during operations.

Low noise levels and a relaxation area for those off watch reduces crew fatigue.

Propulsion is provided by twin Caterpillar 3516B DI-TA ELEC engines driving two variable pitch propellers via Reintjes gearboxes for a top speed of 26.25 knots. The variable pitch propellers provide a loitering capability and with forward bow thrusters the vessel can turn within its own length.

Two Caterpillar 3304 DI-T gensets mounted in the main engine room provide general electricity supplies.

The design features an aft deck slipway arrangement for the rapid deployment of a 7m RIB, which is stored in the slipway recess and can be launched by opening the hydraulically operated transom door and unlocking the quick release hooks at the bow. Retrieving the RIB can be accomplished at speeds of up to 8 knots. The RIB can drive up the slipway almost to the stowed position under its own power, with a hydraulic capstan then finishing the job.

MJ Information No: 19624