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When wind is present, which speed must you use to figure flight time and fuel burn?

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  1. Indicated airspeed
  2. True airspeed
  3. Groundspeed

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References

  1. Pilot's Handbook of Aeronautical Knowledge FAA-H-8083-25C, Chapter 16 Navigation www.faa.gov/sites/faa.gov/files/18_phak_ch16.pdf Checked 2026-10-09.

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