Maintains and monitors radio, sends and receives messages. Often maintains electronic navigation. Latest replaced with certified GO (Deck officer)

Search of a vessel, by Customs authorities, for unreported goods.

A method of docking with a boat's stern to the dock.

A timber or rib of a ship running from the keel to the side rail; the transverse strengthening members in a ship's hull that extend from the keel to the deck or gunwale. The frames form the shape of the hull and act as a skeleton on which the hull plankin ...

An international goods classification system for describing cargo in international trade under a single commodity-coding scheme. Developed under the auspices of the Customs Cooperations Council (CCC), an international Customs organization in Brussels, thi ...

Fixed ports that do not open which are placed in the deck or cabin to admit light.

Is the ratio of the computed isentropic temperature rise to the measured total temperature rise during compression.

An object used as a reference point while navigating.

The air compressor continues to run, usually at full RPM, but no air is delivered because the inlet is either closed off or modified, not allowing inlet air to be trapped.

A line used for suspending articles.

A track or groove in the back of the mast to which the sail is attached by means of lugs or the bolt rope.

Cargo more than eight feet high which thus cannot fit into a standard container.

A loop shaped fitting attached to the deck, spar, boom, etc., used to secure a line or block to some part of the vessel.

A watch tackle (small, handy block and tackle for general use).

Said of a lighthouse not tended.

Is the suction pressure attained by an ejector or positive displacement vacuum pump at zero capacity with the suction absolutely blanked off.

Boards used to close the companionway.

A boat that has rolled so that she is lying on her side or even rolled completely over (can be caused by a sudden gust or squall). A boat with appropriate ballast should right herself after being knocked down.

A fabric, usually synthetic, used to make sails.

A rope spliced into the end of a block and used for making it fast to rigging or spars. Such a block is called a tail-block.