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MaxSea Operator Manual version 12.6 - Furuno USA

MaxSea Operator Manual version 12.6 - Furuno USA

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<strong>MaxSea</strong> <strong>Operator</strong> <strong>Manual</strong> <strong>version</strong> <strong>12.6</strong><br />

SOG<br />

438<br />

Speed Over Ground - it is<br />

the actual fixed geographic<br />

speed of a vessel. It is<br />

essentially the Speed over<br />

Water (SOW), plus the<br />

cumulative effect of wind and<br />

current.<br />

ETA Estimation Time Arrival -<br />

Software calculation with<br />

present date and speed of<br />

the vessel.<br />

Current Dir Current Direction<br />

Current Speed Current Speed<br />

TWD<br />

TWS<br />

TWA<br />

True Wind Direction - In order<br />

to overcome the effects of<br />

drift and wind, a vessel which<br />

is trying to reach a given<br />

waypoint may not bear<br />

straight towards it. As a<br />

result, onboard wind direction<br />

measurements - the AWD -<br />

may not be the same as the<br />

True Wind Direction (TWD).<br />

True Wind Speed - When<br />

the vessel is in motion,<br />

onboard wind speed<br />

measurements - the AWS -<br />

will differ from stationary<br />

measurements (TWS).<br />

True Wind Angle<br />

AWA Apparent Wind Angle<br />

Software calculation with<br />

present date and speed..

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