see Devil

The forward part of a boat's main deck.

Very small wooden pail having one stave prolonged to form a handle. Used as a bailer in a boat.

A dust-collection chamber containing numerous permeable fabric filters through which the exhaust gases pass. Finer particulates entrained in the exhaust gas stream are collected in the filters for subsequent treatment/disposal.

An announced warning of an approach of a storm.

The meridian from which longitude is measured eastwards or westwards. The longitude of the prime meridian, passing through Greenwich, England, is 0

A standard numerical code used by the U.S. Government to classify products and services.

(1) Clear, not tangled. (2) sailing free: a vessel is sailing free when her sheets are eased. (3) running free: to sail with the wind from astern.

A floatation device shaped like a U and thrown to people in the water in emergencies.

The slight deflection of very small particles in a gas stream that occurs when rapidly moving gas molecules strike them.

A compressor belonging to the group of displacement reciprocating compressors.

The total pressure minus the static pressure in an air or gas stream.

To spill the sails is to take the wind out of the sails, either by heading up into the wind, or by easing the sheets to the point where the sails can hold no wind.

(0.2+0.02 log10(Vc)) Vc (4d/3D)2, for passenger ships the following formula is added: 1.25 (GT+10000)/10000 (N1+(N2/10)), where Vc is the volume of cargo holds, D is the distance between ship's bottom and the uppermost deck, d is the draught N1 is the num ...

A safety device used to prevent or stop unwanted flames.

The difference between the diameter of a shaft rod, etc., and that of the hole in which it works.

Lie at anchor

A ported enclosure which directs the flow of a gas through the filter element.

Tools that operate by air pressure.

When flogging a seaman, to run the fingers through the Cat-O'-Nine-Tails after each stroke to separate the strands in preparation for the next stroke.