Nickname for a British naval seaman.

An object designed to increase the radio reflectivity of a boat so that it is more visible on radar. Many small boats are made with fiberglass and other materials that do not reflect radar very well on their own.

An inert gaseous element.

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A term for what frequently happened to Nantucket whalers when they left the whaling ship in a small boat to go after a whale. If they harpooned the whale without mortally wounding it, the animal took off with the whaleboat in tow.

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Officer's recreation area.

Usually the forward berth of the boat, located in the bow

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Compressors that operate with an intake pressure below atmospheric and discharge pressure usually atmospheric or slightly higher.

To veer or haul on a rope, slightly, so that a part subject to nip or chafe is moved away and a fresh part takes its place.

see Monkey Jacket.

A two masted sailboat with the shorter mizzen mast placed aft of the rudder post. A ketch is similar, but the mizzen mast is forward of the rudder post.

A multilateral maritime treaty adopted in 1921 (at The Hague, Netherlands). Standardizes liability of an international carrier under the Ocean B/L. Establishes a legal "floor" for B/L. See COGSA

Devices with passages for directing flow into alternate paths.

Scantling draft is the maximum draft at which the ship can withstand all the loads safely. In other words, it is the draft at which the strength of the ship is built. It may or may not be equal the tropical draft (Maximum to a ship can load as per load li ...

A control line, usually a multi-purchase tackle, secured to the boom to prevent it from lifting. Can also apply to other spars, such as gaffs.

The situation of two vessels, lying alongside one another, so near that their yard-arms cross or touch.

The control ring in a valve which surrounds the seat, used to control pre open and blow down.