A flat bottomed, blunt nosed dinghy (or small boat).

To intercept the wind. A vessel or highland to windward is said to becalm another. So one sail becalms another.

A small buoy that is used to mark the position of an anchor. It is attached to the base or crown of an anchor and can be used to recover the anchor if it has to be cast adrift, or to trip it if it becomes wedged.

A device used to keep a line from slipping, such as a jamcleat.

That amount of time that a carrier's equipment may be used without incurring additional charges. (See Storage, Demurrage or Per Diem.)

To drag the bottom for an anchor. Also, large oars used in small vessels to force them ahead.

A strong pair of iron, steel or wooden posts on a ship's deck, around which ropes or cables are wound and held fast.

Cycles per minute - a unit of measure of the frequency of any vibration.

Where the engines of a ship are confined.

A device for separating solids or suspended particles in the air before they enter the air intake of the compressor and reduce intake noise as on reciprocating compressors through a silencing chamber in the filter housing.

A figure marked on the side of merchant vessels to indicate allowed loading depths. Named after Samuel Plimsoll, English Member of Parliament and maritime reformer.

A heavy longitudinal timber placed over the keel in a ship's stern through which the propeller shaft passes.

The tendency in a boat to keep an upright position or to return to it when careened over.

The penalty a seller must pay if the construction project does not meet contractual standards or deadlines.

To transfer goods from one transportation line to another, or from one ship to another.

A platform and protective coaming setting high up on a mast, to accommodate the look-out aloft while the ship is at sea.

Is a pipe extending downward from the bottom of the airline to collect any condensation flow in the pipe.

When reciprocating compressors run, the moving parts such as pistons, rods, crossheads, connecting rods are repeatedly accelerated and retarded. These velocity changes set up pulsating inertia forces. The forces are of the first and second order. The firs ...

Light, warm wind on surface of sea.

The general preparation of a vessel to make ready for the sea in all respects.