Underwriters Lab.

A triangular topsail set above the mainsail in a gaff-rigged vessel.

The law of the sea; jurisdiction over maritime causes.

A small boat, highly ornamented, with a high rising stem and sternpost. Used on the canals of Venice, it is propelled by a man standing near the stern using a single oar

The measurement around the body of a ship. The half girth is taken from the center line of the keel to the upper deck beam end.

The total gas pressure (static plus velocity).

The largest of the headsails; corresponds to the genoa.

Term for disabled vessel that had to fall out of a convoy and thus became easy prey for submarines.

Continuous longitudinals fastened under the deck.

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

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

(1) A sailing vessel common in the Far East. It's flat-bottomed, high sterned, has square bows, and has two or three masts carrying lugsails. (2) Old and condemned rope.

Allows equipment and supplies arriving at one port to be loaded on a vessel, aircraft, etc., for its exclusive use and to be exported from the same port.

One carrier assumes the charges of another without any increase in charges to the shipper.

A forceful resistance to recognized authority. A refusal to obey a legal order of a superior officer is also considered mutiny.

A ladder of rope with rungs, used over the side.

An old name for high waves when they break with a white crest.

A single turn of line around an object with the end being led back through the bight. It's the basis upon which many nautical knots are contructed.

Close beside a ship, wharf or jetty.

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.