Short for compressed natural gas or CNG. A type of compressed gas used as fuel for stoves and heaters. CNG is stored in metal cylinders prior to use. CNG is considered safer than other types of fuel such as propane LPG - because it is lighter than air and ...

An irrevocable letter issued for a specific amount; renews itself for the same amount over a given period.

Compressors of 20 HP or less, generally combined with all the components required to put the into operation.

A list of navigational lights arranged in geographical order, giving the position and characteristics.

An agreement to hold a carrier harmless with regard to a liability.

The position of a flag when lowered halfway down.

Flow of air under specific conditions required at a particular point.

Seaman's term for the period of work on board ship for which he has been paid in advance when signing on.

Cotton yarn used for cleaning purposes.

A lower-than-usual tariff rate assessed because a shipper offers a greater volume than specified in the tariff. The incentive rate is assessed for that portion exceeding the normal volume.

Said of cable when it extends vertically and taut from anchor to hawsepipe.

A restrictive tube used in a refrigeration system which restricts the flow of freon and allows pressure to build on one side and suction on the other. It is located between the condenser and the evaporator.

When the wind pushes on the wrong side of the sail, causing it to be pushed away from the wind. If the lines holding the sail in place are not released, the boat could become hard to control and heel excessively.

The condition when a perfect gas is isentropically compressed, and the gas inlet temperature and also the amount of work spent is the same for each stage.

A vessel designed for the transport of people or goods from one place to another on a regular schedule.

The swiveled opening at the top of a ventilator.

A person inexperienced with or uncomfortable around boats.

A coupling pin centered on the front underside of a chassis; couples to the tractor.

A locker big enough to hang clothes.

A hole in the hull for mooring lines, cable, or chain to run through.