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The absence without leave of a member of the crew or failing to join the ship in due time after signing an agreement to proceed at sea.

Related Terms

BUMPKIN

The spar projecting from stern of ship

TRAMP FREIGHTER

A cargo ship engaged in the tramp trade.

WATCHSTANDING

The allocation of crew or staff to a watch.

CORDAGE

Ropes in the rigging of a ship

WEATHER SIDE

The side of a ship exposed to the wind.

ACCELERATION

The time rate of change of velocity; i.e., the derivative of velocity; with respect to time.

RUNNING TIME

Amount of time an unit, equipment or system is run per hour or per 24 hours.

GROUP REPETITION INTERVAL

The specified time interval of a Loran C chain for all stations of the chain to transmit their pulse groups. For each chain a minimum group repetition interval (GRI) is selected of sufficient duration to provide time for each station to transmit its pulse group and additional time between each pulse group so that signals from two or more stations cannot overlap in time anywhere within the coverage area. The GRI is normally stated in terms of tens of microseconds; i.e., the GRI having a duration of 79,900 microseconds is stated as 7900.

HARMONIC FUNCTION

Any real function that satisfies a certain equation. In its simplest form, as used in tide and tidal current predictions, it is a quantity that varies as the cosine of an angle that increases uniformly with time

HOUR-GLASS EFFECT

A radarscope phenomenon which appears as a constriction or expansion of the display near the center of the plan position indicator, which can be caused by a nonlinear time base or the sweep plot starting on the radar indicator at the same instant as the transmission of the pulse. The phenomenon is most apparent when in narrow rivers or close to shore.
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