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An aircraft flies from A to B, a distance of 133 NM in 1 hour and 12 minutes. If it experiences a headwind of 12 kt, what is the TAS?

  • A

    123 kt

  • B

    115 kt

  • C

    99 kt

  • D

    108 kt

1. Convert the time into hours:

  • 1 hr + 12/60 = 1.2 hr

2. Calculate the Groundspeed:

  • GS = Distance / Time
  • GS = 133 NM / 1.2 hr = 111 kt

3. Calculate the True Airspeed:

  • Headwind = 12 kt
  • Then TAS > GS
  • TAS = GS + Headwind
  • TAS = 111 kt + 12 kt = 123 kt

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