The Dictionary of English Nautical Language Database: Search Results
Your search returned 8 matches.
Term:
displacement speed (n)
Definition:
The maximum speed attainable by a displacement hull vessel, a function of its shape, waterline length, displacement and drag. Adding additional power beyond this speed may increase the speed by a small increment, but is not economical.
See Also:
hull speed
Term:
flank speed (n)
Definition:
The fastest speed of which a ship is capable. The term is used exclusively aboard warships to describe an emergency speed which is employed only in special situations disregarding economy or wear of the vessel.
Term:
hull speed (n)
Definition:
The maximum speed attainable by a displacement hull vessel no matter how much power is applied; as in: “The hull speed of that cruiser is nine knots.”
See Also:
displacement speed
Term:
speed (n)
Definition:
The rate of motion of a vessel over the water or over the bottom.
Term:
speed curve (n)
Definition:
A plotted scale showing the relationship between engine speed or shaft rotatation in revolutions per minute and the speed of the boat through the water.
Term:
speedboat (n)
Definition:
A light powerful motor launch capable of high speeds.
Term:
wind speed indicator (n)
Definition:
An electronic instrument which measures and displays the relative velocity of the wind. Usually there is a small propeller mounted aloft which spins in the wind. The speed of the turning propeller is gauged electrically and displayed on a readout at the helm.
See Also:
anemometer
Term:
cruising speed (n)
Definition:
The optimal speed of a vessel taking into account hull form, engine and propeller functions and fuel economy.
