The short foot rope at the end of a yard at the outer corner of a square sail used when reefing or furling.

Is the ratio in absolute units of the actual gas temperature to the critical temperature.

Cubic capacity in 'grain"

A mooring buoy or spar. A group of piles driven close together and bound with wire cables into a single structure.

Disciplinary code in which maritime crimes and punishments are specified.

Reduce dew point by passing compressed air through a bundle of hollow membrane fibers; water vapor and a portion of the compressed air then permeate the membrane walls and vent to atmosphere

(1) A second method of propelling a vessel. On a sailboat this would be the engine. (2) Machinery fitted in steam and motor vessels which is not part of the main propelling machinery. (3) a support group, e.g., Coast Guard Auxiliary

A receptacle, open to atmosphere, that is used to used to collect condensate. For example, two or three drain pipes from various filters may be discharging into a funnel. In this case the funnel is a tundish.

Same as not under command.

A device designed to remove solids, such as dirt, scale, rust and other contaminants from the air system.

The angle between the sail and the apparent wind or the rudder or centerline and the water flow.

Marks of identification.

Short period oscillation in level of enclosed, or partly enclosed, area of water when not due to the action of tide-raising forces.

To install the sails on the boom or the forestay.

A nickname referring to British seamen. All British ships were to carry a supply of lime juice for issue to the crew as a preventative against scurvy.

Rank intermediate between officer and rating, and in charge of ratings; more or less equivalent to the rank of sergeant.

Sailor's name for the north star, Polaris, which for all practical purposes remains fixed above the north pole, bearing north from everywhere in the northern hemisphere, making it a true aid to navigation.

Applies to vessels, not to cargo, (0.2+0.02 log10V) where V is the volume in cubic meters of all enclosed spaces on the vessel.

The process of checking the accuracy of and adjusting the ship's magnetic compass.

The power which is theoretically required to compress a gas under constant temperature, in a compressor free from losses, from a given inlet pressure to a given discharge pressure.