A line that controls the angle of the sail in its relation to the wind; attached to the clew of a sail to adjust its trim (make the sail the proper shape to catch the wind).

The post that the rudder is attached to. The wheel or tiller is connected to the rudder post.

A person or firm who transacts all business in a port on behalf of shipowners or charterers. Also called shipping agent; agent.

To change the course of a sailing vessel.

Liquefied Petroleum Gas, or a carrier of LPG.

An instrument for measuring the amount of air flow of a compressor. Measured in CFM.

To unload a shipping container.

The region around the equator between the Tropic of Cancer and the Tropic of Capricorn. The tropics are known for their warm weather.

The bow and forward part of the vessel above the waterline.

The mast aft of the mainmast in a sailing ship - the shorter mast behind the main mast on a ketch or yawl, or the third aftermost mast of a three-masted schooner or square-rigged ship.

A worn out vessel.

A region near the earth in which the relative velocity increases from zero with elevation, due to the motion of the atmosphere relative to the earth's surface.

The horsepower required to compress adiabatically the air or gas delivered by the compressor through the specified range of pressures.

The way a boats spars and sails are arranged. To rig a vessel is to fit her with masts, spars, sails and running and standing rigging; term is also used to mean the setting up a device, e.g., to rig a lifeline, a tackle, etc

Various means for allowing LNG tanks to expand and contract due to temperature changes by sliding on the tank supports while restricting its movement due to the motion of the vessel.

A device invented by Captain Jacques Cousteau in 1943 to enable a diver to operate underwater independent from an air supply from the surface.

Originally meant "to stow cargo". Now, means "to search a ship carefully and thoroughly".

A design in which the forestay does not go to the very top of the mast, but instead to a point 3/4-7/8 of the way up the mast.

A short period at the turn of the tide. The time between flood and ebb tides when there is no current flow.

See insurance.