See 'Government National Mortgage.

A unit of energy defined as the heat required to raise the temperature of one pound of water one degree Fahrenheit. It is equal to 252.1 calories or to 1055 joules.

The power that is consumed to overcome the frictional losses when operating in an unloaded condition.

Pressure dew point temperature (

Solid fuels made from primarily wood sawdust that is compacted under high pressure to form small (about the size of rabbit feed) pellets for use in a pellet stove.

National Maritime Resource Center.

The fitting in the bottom of the boat in which the bottom or heel if the mast sits.

Freight that has not been called for or picked up by the consignee or owner.

A hand held pneumatic tool. Designed for light demolition work, digging, making holes etc.

(1) To adjust the sails for best advantage. (2) Fore and aft balance of a boat. If either the bow or stern is depressed, the vessel is said to be down by the bow or down by the stern. (3) To trim is to adjust. It does not just apply to sheets. You can tri ...

Temperature to which absolutely dry air would have to be brought in order for it to have the same density as moist air, considered at the same pressure.

Maritime Defense Zones

Heavy Fuel Oil

The degree to which all the forces on a boat are symmetrical so the vessel sails with just a slight weather helm.

The process of prior removal of the active corrosive constituents usually oxygen, from a corrosive liquid by controlled corrosion of expendable metal or by other chemical means, thereby making the liquid less corrosive.

Tax allowances are concessions by the Inland Revenue which can be used to reduce a person's.

see Gybe

The process in which a solid fuel is converted into a gas; also known as pyrolitic distillation or pyrolysis. Production of a clean fuel gas makes a wide variety of power options available.

To watch a vessel at anchor at the turn of tides, and cast her by the helm, and some sail if necessary, so as to keep turns out of her cables.

A federal agency established in 1933 to develop the Tennessee river valley region of the southeastern U.S., and which is now nation's largest power producer.