A navigation instrument used to measure the apparent height of a landmark whose actual height is known, such as the top of a lighthouse. From this information, the ship's distance from that landmark can be calculated.

Quantity of gas actually compressed and delivered to the discharge system at rated speed of the machine and under rated pressure conditions.

To let the sheet out slowly while maintaining control.

The situation of a vessel when listed over by the wind to such an extent that she does not recover.

Underwriters Lab.

Term for a seaman's short leave from his ship, permitting him to go ashore for the day or night.

A representative of a government commission or agency vested with power to administer oaths, examine witnesses, take testimony, and conduct hearings of cases submitted to, or initiated by, that agency. Also called Hearing Examiner.

A colorless, odorless, tasteless gas. A mixture of individual gases. The gaseous mixture surrounding the earth. Standard density of dry air free of carbon dioxide (0

A sea on the quarter (coming from a side of the stern).

A type of filter capacity test in which a clogging contaminant is added to the influent of a filter, under specified test conditions, to produce a given rise in pressure drop across the filter or until a specified reduction of flow is reached. Filter life ...

Any fixed object that a navigator may use to find his position, such as permanent land or sea markers, buoys, radiobeacons, and lighthouses, and to indicate safe and unsafe waters.

Sequence of letters and numbers, unique to each ship by which ships can be identified.

Metal bolts with an eye in the end.

The act of striking or collision of a moving vessel against a stationary object.

Sailing on a run with the wind coming over the stern from the same side as the boom (danger of jibing).

A mast that is stepped (placed) on the deck of a boat rather than through the boat and keel stepped. The mast of a deck stepped boat is usually easier to raise and lower and are usually intended for lighter conditions than keel stepped boats.

Resting on the surface of the water.

Practice of loading iron ore cargoes into every alternate hold, leaving the remaining holds empty.

Nautical name for an argumentative person.

Describes the pressure drop through a component and is the difference in pressure between two points.