15. Navigation Sensors
15-16
15.8 Wind Sensor
chart radar can display and output wind data in the following three formats:
Apparent: Windmeter-measured wind speed and direction.
Wind angle reference: Heading
North: True wind angle, true wind speed
Wind angle reference: True North
Theoretical: True wind angle, true wind speed
Wind angle reference: Heading
The illustration below shows wind speed and direction with given ship data.
The wind values are as shown below.
Ship information:
COG: 60 deg SOG: 8.7 kt
Heading: 45 deg
Wind angle Wind speed
Apparent: 345 deg 10 kt
North: 330 deg 5 kt
Theoretical: 285 deg 5kt
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