(1) To adjust the sails for best advantage. (2) Fore and aft balance of a boat. If either the bow or stern is depressed, the vessel is said to be down by the bow or down by the stern. (3) To trim is to adjust. It does not just apply to sheets. You can tri ...

Wind coming from the north.

A projecting aperture at the end of a tube, pipe etc. serving as an outlet for compressed air. Reduces the demand on the compressor by generating the highest thrust and volume for the lowest possible air consumption.

Filter rating indicating the approximate particle size for which the majority will not pass through a given filter. It is generally interpreted as meaning that 85% of the particles of size equal to the nominal filter rating will be retained by the filter.

The line to which a vessel is submerged with a full cargo on board.

A large sail that is a cross between a spinnaker and a genoa. Hoisted without a pole, the tack is attached at the bottom of the headstay.

A plot of expected operating characteristics (e.g.., discharge pressure versus inlet capacity, shaft horsepower versus inlet capacity).

The natural tendency of a sailboat to come up into the wind. The helm must be held over to keep the boat from coming up

Sailor's phrase for a seaman who has died.

Is the weight of a given volume of gas, usually expressed in lb / cu ft at SPT condition.

Lift anchor off the bottom.

A light line used for hauling over a heavier rope or cable.

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.

A wharf licensed and attended by Customs authorities.

An item such as a nail, screw, rivet or other device used to fasten objects together.

In transit, or in passage.

Unit of free air flow rate. Normal cubic meter per hour. The air in the following conditions:1.013 bar(a) of pressure; 0 degrees Celsius of temperature and 0% of relative humidity .

One who earns his living by service at sea.

The first plank on the outer hull of a wooden vessel next to the keel. In steel ships, the plating next to the keel, or what is known as strake A.

A card marked in degrees and having sightings on it that is used to take bearings relative to the ship, rather than magnetic bearings as taken with a compass.