The structural arrangement and form of the forward end of the ship.

A crosshead arrangement used on ram-type steering gear in which the mechanical advantage increases with the angle of turn.

Large steel constructions consisting of longitudinal beams plated over to provide a vehicle roadway.

A narrow layer of moving water adjacent to the hull of a ship as it moves through the water.

The shell envelope plating forming the predominantly flat bottom portion of the shell envelope including the keel plate.

A small compartment in which tools and small stuff for repairing cargo gear are kept.

The central portion of a propeller to which the blades are attached and through which the shaft end passes.

The RAMFORM TITAN delivered by the MHI shipyard in Nagasaki, is the most powerful and efficient marine seismic acquisition vessel ever built and, with a width at the stern of 70m, the widest ship in the world at the waterline.

The surface of the outside plating between light and load waterlines. It is the hull area which is most exposed to corrosion.

1. A long round spar hinged at its lower end, usually to a mast, and supported by a wire rope or tackle from aloft to the upper end of the boom. Cargo, stores, etc, are lifted by tackle leading from the upper end of boom.

Curves of areas and moments of sections versus draught, plotted on the sheer plan.

Place on a vessel where goods are placed behind seal until the time that the vessel leaves the port or country again.

Dutiable goods upon which duties have not been paid i.e. goods in transit or warehoused pending customs clearance.

Flatbeds used to transport damage-free cargoes such as components, pallets, bales, bundles, reels or crates. Heavy-duty forklift trucks and trailers move and stow the bolsters.

The concept of the triangular-shaped hull form with an extraordinary wide stern, developed by Roar Ramde and originally adopted for Norwegian Navy surveillance ships.

The thrust developed at zero ahead speed. Bollard pull is the most commonly used measure of ship-assist tugs performance which have propellers optimized for maximum thrust at close to zero speed.

A rectangular base welded to the deck of the ship, upon which two vertical bitts are welded. Bollards are used to secure the mooring lines.

1. A hydraulically-operated piston which seals off a well when the blowout preventer is actuated. 2. The piston rod of a hydraulic cylinder as in a ram-type steering gear.

A temperature at which a liquid boils at a specific pressure. It is usually given at the atmospheric pressure.

To reduce corrosion and scale formation in boilers, boiler water must be maintained in slightly alkaline conditions by carefully controlled addition of chemicals.