The cover of a scuttle-way or small hatchway which leads to to or from a store room, cabin of small craft, crew's quarters, the forecastle or fore peak.

The one who steers the boat.

Crane Barge.

A coupling device which consists of a spring loaded shutoff valve and a positive locking mechanism. It is used to connect tools, hoses and other accessories. Also known as Quick Disconnect.

National Fluid Power Association.

(GEMMs)See 'market.

A device used to transfer heat from a fluid (liquid or gas) to another fluid where the two fluids are physically separated.

The heat-transfer (exchanger) component of a heatpump, located outdoors, from which heat is collected in the heating mode, or expelled in the cooling mode.

A sudden brief increase in the speed of the wind, followed by a lull or slackening. Compare to peak gust.

a wind coming from the northeast

The after section of the propeller shaft.

Lloyd's Register of Shipping (British Class Society)

Heat cannot, of itself, pass from a colder to a hotter body.

Above sea level

The angle at which a solar collector or module is set to face the sun relative to a horizontal position. The tilt angle can be set or adjusted to maximize seasonal or annual energy collection.

A frame used to support the boom when the sail is down.

A unit used when measuring atmospheric pressure. 33.86 millibars.

A photometric unit of illuminance or illumination equal to one lumen per square centimeter.

A metallurgical term describing the formation of graphite in iron or steel, usually from decomposition of iron carbide at elevated temperatures. Not recommended as a term to describe graphitic corrosion.

Special Intermediate Survey