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Should You Add Flaps Mid-Takeoff on a Short Runway?

A CFI says it’s best to fall back on the pilot's operating handbook.

Many aircraft call for an initial flap setting prior to beginning the takeoff roll to create more lift at the given airspeeds. [Credit: Julie Boatman]
Gemini Sparkle

Key Takeaways:

  • It is incorrect and potentially dangerous to deploy flaps during the takeoff roll for a short-field takeoff.
  • Always adhere strictly to the aircraft's Pilot's Operating Handbook (POH) or Aircraft Flying Manual (AFM) for specific flap settings and takeoff procedures, as these are established by the manufacturer for best results.
  • For short-field takeoffs, flaps (typically set to a percentage less than half) should be configured *before* the takeoff roll as per POH instructions, then incrementally retracted after clearing obstacles and achieving VY.
See a mistake? Contact us.

Question: When departing on a short runway—and since flaps produce drag—would it be wrong to wait until you have “enough” speed and then deploy flaps?

Answer:

Meg Godlewski

Meg Godlewski has been an aviation journalist for more than 24 years and a CFI for more than 20 years. If she is not flying or teaching aviation, she is writing about it. Meg is a founding member of the Pilot Proficiency Center at EAA AirVenture and excels at the application of simulation technology to flatten the learning curve. Follow Meg on Twitter @2Lewski.

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