SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/pilot-short-field-vx-vy-sequence

After a short-field takeoff with an obstacle, when should you transition from VX to VY?

Change to VY after clearing the obstacle.

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  1. Before liftoff
  2. At the runway midpoint
  3. After clearing the obstacle ✔

Why: Climb at VX for the steepest path over the obstacle. Once clear, lower the pitch slightly and continue at VY for the best climb rate.

Huh, didn't know that: Without an obstacle, the AFH says maintain VX to at least 50 feet above the takeoff surface.

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VX clears the fence, then VY climbs the ladder.
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References

Answer: After clearing the obstacle. Climb at VX for the steepest path over the obstacle. Once clear, lower the pitch slightly and continue at VY for the best climb rate.

  1. FAA Airplane Flying Handbook, Chapter 6 www.faa.gov/sites/faa.gov/files/regulations_policies/handbooks_manuals/aviation/airplane_handbook/07_afh_ch6.pdf
    maintain a wings-level climb at VX until all obstacles have been cleared
    Checked 2026-10-09.

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