The perpendicular distance in a transverse plane from the top of the flat keel to the underside of deck plating at the ship side.

The maximum horizontal breadth of any frame section. The term breadth and beam are synonymous.

An electronic controller for starting a motor from rest, accelerating it up to normal running speed and also stopping it.

A casing provided according to the location of the motor, e.g. flameproof, drip-proof, hose-proof.

The LNG cargo containment system developed by Moss Rosenberg Verft. The system features self-supporting spherical tanks connected at the equator to a single cylindrical supporting skirt, the lower portion of which is welded to the ship structure.

The power source for the winch systems can be low-pressure hydraulic, high-pressure hydraulic, frequency-converter drive or pole-change electric drive.

Mooring winches secure the shipboard end of mooring lines, provide for adjustment of the mooring line length and compensate for changes in draft and tide.

The percentage of the minimum breaking load (MBL) of a new mooring rope or wire it carries, at which the winch brake is designed to render.

The brake is the heart of the mooring winch, since the brake secures the drum and consequently the mooring line at the shipboard end.

A winch with a drum which is used for hauling in or letting the mooring wires go. A warp end is also fitted to assists in moving the ship.

Testing of main propulsion machinery with the ship moored.

Number of mooring lines by line breaking strength.

The capability of a mooring system to resist external forces on the ship.

Lines (or cables) used to secure a ship at a berth. Mooring lines should be arranged as symmetrically as possible about the midship point of the ship.

Bollards and bitts, fairleads, stand rollers and chocks used for the normal mooring of the ship and similar components used for the normal towing of the ship.

Mooring equipment includes mooring winches, anchor windlasses, chain stoppers, fairleads and capstans.

Mooring drums may be either split or undivided. For either type of drum, the diameter should be 16 times the wire rope diameter.

The geometric arrangement of mooring lines between the ship and the berth. See also Arrangement of chocks and bitts for transit of Panama Canal.

A novel document with index and characteristics of machinery, equipment, shipboard fittings and ropes available for mooring and towing. It must be available on board for the guidance of the Master.

Securing a ship at a pier or elsewhere by several lines or cables to limit her movement.