Steel wire, used to support over-the-side sampling apparatus

A ring or hoop of metal.

Toward the shore

The dimensionless number obtained when the difference between maximum and minimum instantaneous shaft speeds during one period is divided by the arithmetic mean of these two.

A light spar set fore and aft on a boat, serving as a spread for the boat cover.

Tanks used for the storage of air discharged from compressors. They serve also to damp discharge line pulsations.

A ship designed to carry either ore or oil in bulk.

For ships, a cargo handling area parallel to the shoreline where a vessel normally ties up.- For land transportation, a loading or unloading platform at an industrial location or carrier terminal.

General name for a broad, flat-bottomed boat used in transporting cargo between a vessel and the shore. The distinction between a lighter and a barge is more in the manner of use than in equipment. The term "lighter" refers to a short haul, generally in c ...

Go to bed without undressing.

A squally wind sometimes accompanied by rain, observed as a dark cloud stretched across the horizon.

The rank held by a naval seaman.

In navigation, the smaller angle at which two position lines on a chart intersect. The fix will be more reliable as the angle approaches 90

A line or wire from the mast to the bow or stern of a ship, for support of the mast; rigging used to support the mast from forward or aft.

A nickname referring to British seamen. All British ships were to carry a supply of lime juice for issue to the crew as a preventative against scurvy.

The gears that reduce engine speed to propeller speed.

A concrete foundation with lateral supports which rests upon a number of steel springs. Designed to deal with disturbing frequencies in vibration isolation

Also bosun, bos'n, bo's'n, and bo'sun, all of which are pronounced bosun. The highest unlicensed rating in the deck department who has immediate charge of all deck hands, oversees deck crew, maintenance and upkeep of the ship except for the engine room an ...

Ratio of the pressure of a gas to its critical pressure, in like units.

Short shrouds which give support to the top of a lower mast.