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Concave metal mirror in a reflecting telescope.
Of a ship
, is her velocity through the water in a given condition.
Of a piston
, is the number of feet it travels in one minute.
Of crank pin
, is distance centre travels in one minute.
Error of indication
by a gyro compass
, due to torque set up by speed of ship.
Speed of Wave______ __323______ ___Spiders Web
Speed of Wave.
Rate at which successive crests pass a fixed point.
In ocean waters
, speed in knots is approximately 0.8 speed of wind.
The running of a vessel on a measured distance to ascertain her exact speed.
spent on a particular duty
, or when relieved from duty.
Loose-footed trysail set abaft mast and with head extended along a gaff.
abaft a principal mast
, for carrying a trysail.
To spend a mast
, spar, or sail is to cause it to be carried away in bad weather.
Alternative name for 'Cachalot'.
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