Upward displacing swells.

The drying of compressed gases other than air. Equipment size, choice of materials and other specifications may be decidedly different for drying gases other than air because of the specific properties of the gases. Properties include specific gravity, sp ...

A floating log

An additional keel secured outside the main keel, usually as protection in the event of grounding.

The operation of bringing two lines together; term also applied to other objects.

The ratio and percent of the actual delivered capacity (measured at inlet temperature, pressure and gas composition) to the piston displacement.

The fitting which connects the boom to the mast.

The energy in foot pounds required to compress adiabatically and to deliver one pound of a given gas from one pressure level to another.

Magnetic variation. The difference, east or west, between magnetic north and true north, measured as an angle. Magnetic variation varies in different geographic locations.

When the wind shifts toward the bow. Opposite of lifted.

Cargo discharged in excess of the quantity on the manifest.

Steering; keeping the ship on the course given (no lazy steering).

A person inexperienced with or uncomfortable around boats.

A unit of 1,000 bars of pressure.

Name given to the lowest deck in a ship.

The swiveled opening at the top of a ventilator.

A coupling pin centered on the front underside of a chassis; couples to the tractor.

On vessels constructed of wood, the narrow gap between the planks which form the decks and sides and were caulked to make them watertight. Since wood swells when it's in contact with water, a narrow seam is necessary to allow for the expansion.

To turn the boat head-to-wind so as to go about on the opposite tack

The natural tendency of a sailboat to come up into the wind. The helm must be held over to keep the boat from coming up