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Calculate the W/V if:

True heading: 310°
TAS: 200 kt
GS: 176 kt
Drift angle: 7° right

  • A
    270° T/33 kt
  • B
    090° T/33 kt
  • C
    180° T/33 kt
  • D
    360° T/33 kt

Refer to figure.

Determining winds with the flight computer:

1. Set True Heading (310ºT) under "True Index"
2. Place centre dot over TAS (200 kts)
3. Mark the point where drift (7ºR) and GS (176 kt) meet.
4. Rotate the wind computer until mark is below TAS.
5. Check wind direction under "True Index" (270º)
6. Count down from TAS to obtain wind speed (200 - 167 = 33 kt)

W/V = 270º/33

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