Tanks carried in various parts of a ship for water ballast, for stability and to make the ship seaworthy.

The difference between the maximum extended height and the compressed height of an air actuator.

Loose ends of line left hanging over a ship's side.

An automatic or manual valve that causes the flow to be by passed.

A draft that matures on a fixed date, regardless of the time of acceptance.

A paint applied to the boat's bottom below the waterline which contains "poisons", such as copper, to inhibit the growth of marine life such as weeds or barnacles.

A curved or vertical timber that when paired with a floor or additional futtocks makes the frame of a wooden ship.

A strong pair of iron, steel or wooden posts on a ship's deck, around which ropes or cables are wound and held fast.

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

A term which describes the rising of warm air above cold air when two air masses of different temperatures, humidity and pressure meet.

Is the temperature at the inlet flange of the compressor.

The bearing surrounding the propeller shaft where it exits the hull.

The type of bottom that the anchor is set in.

Above the main deck.

A conduit for disposing of refuse-especially that the ship/s galley.

A deck crew member who is subordinate to the Able Bodied Seamen.

Force per unit area, usually expressed in pounds per square inch (PSI) or BAR.

A platform and protective coaming setting high up on a mast, to accommodate the look-out aloft while the ship is at sea.

Development of the lugsail rig where the sail is cut with a very short luff and lon leech.

The act of breaking out the flukes of an anchor if they are caught on some obstruction, preventing it from being normally weighed.