A sound where the level fluctuates through a total range of less than 5 dB(A) as measured on the "slow" response of a sound level meter in one minute.
Also stability sail or riding sail. Any small sail set to help the boat maintain its direction without necessarily moving, as when at anchor or in heavy weather.
Water in vapor form; used as the working fluid in steam turbines and heating systems.
A type of furnace in which fuel is burned and the heat is used to produce steam.
A device that converts high-pressure steam, produced in a boiler, into mechanical energy that can then be used to produce electricity by forcing blades in a cylinder to rotate and turn a generator shaft.
A white navigation light carried by vessels under way at night to indicate their presence and give an indication of their course.
A group of vessel operators joined together for the purpose of establishing freight rates.
An indemnity issued to the carrier by a bank; protects the carrier against any possible losses or damages arising from release of the merchandise to the receiving party. This instrument is usually issued when the bill of lading is lost or is not available ...
Tall and short waves caused by water current and wave directions being opposite to the direction of the wind.
Sufficient movement through the water to allow the boat to be controlled and steered by the rudder.