Applied to a wind, or movement of a vessel, to denote brisk and lively.

Type of wrench used to tighten or loosen fire hose fittings.

A tool for coupling hoses.

A pole used as part of the sailboat rigging, such as masts, booms, gaffs, yards, etc. A vertical spar is a mast.

A tall buoy used as a navigational aid.

The radio operator.

Self-Polishing Copolymer (Anti-Fouling Compound)

Specific Power Consumption.

To communicate with a vessel in sight.

The shaft input per unit of compressor capacity.

The ratio of fuel consumption to compressor capacity.

This property is the ratio of the specific weight of air or gas to that of dry air at the same pressure and temperature.

The amount of heat required to raise a unit mass of a substance through one degree, expressed as a ratio of the amount of heat required to raise an equal mass of water through the same range.

The quantity of heat required to raise the temperature of a unit weight of a substance by one degree.

The quantity of heat required to change the temperature of one unit weight of a material by one degree.

The weight of water vapor, per unit weight of dry air.

In a system of moist air, the dimensionless ratio of the mass of water vapor to the total mass of the system.

A measure of air compressor efficiency, usually in the form of bhp/100 acfm or acfm/bhp

The volume of a unit weight of a substance at a specific temperature and pressure.

Is the volume of a given weight of gas, usually expressed as cu ft/lb as SPT conditions.