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SESK: Stuff Everyone Should Know · sesk.info/sport-wsc-flexible-wing

How does a weight-shift-control aircraft mainly control its flight?

By flexing the wing instead of using control surfaces.

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  1. With a rudder and elevator
  2. With ailerons on the wing
  3. By deforming the flexible wing ✔

Why: The pilot moves a control bar to shift the aircraft's weight against a pivoting wing, and the flexible wing deforms to respond. There are no ailerons, elevator or rudder.

Huh, didn't know that: A weight-shift-control aircraft typically can carry 600 pounds of people, fuel and baggage.

The dad joke
A weight-shift pilot doesn't steer. He just leans into it, like me on the couch.
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References

Answer: By deforming the flexible wing. The pilot moves a control bar to shift the aircraft's weight against a pivoting wing, and the flexible wing deforms to respond. There are no ailerons, elevator or rudder.

  1. FAA Weight-Shift Control Flying Handbook Addendum (MOSAIC) www.faa.gov/regulations_policies/handbooks_manuals/aviation/WSC_HB_Addendum_(MOSAIC).pdf
    Flight control of the aircraft depends on the wing's ability to flexibly deform rather than on the use of control surfaces.
    Checked 2026-10-10.
  2. FAA Weight-Shift Control Flying Handbook Addendum (MOSAIC) www.faa.gov/regulations_policies/handbooks_manuals/aviation/WSC_HB_Addendum_(MOSAIC).pdf
    The WSC typically can carry 600 pounds of people, fuel, and baggage.
    Checked 2026-10-10.
  3. 14 CFR 1.1 Definitions (weight-shift-control aircraft) www.law.cornell.edu/cfr/text/14/1.1
    controllable only in pitch and roll by the pilot's ability to change the aircraft 's center of gravity with respect to the wing.
    Checked 2026-10-10.

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