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8. Basic aerodynamics

What is the main purpose of a frise aileron?

  • Increase drag on the up going aileron.
  • Decrease drag on the up going wing surface.
  • Help the pilot overcome aerodynamic hinge loads.

Explanation from PART66Online

A Frise aileron is hinged so that when it deflects up its leading edge protrudes into the airflow beneath the wing, increasing drag on the up-going aileron (the rising-wing side). This added drag balances the higher induced drag on the descending wing, reducing the adverse yaw that would otherwise oppose the turn.

I

Imran88 asked · 30 Mar 2012

What is the frise aileron ?

Community Comments (1)

P
PART66Online 30 Mar 2012
Hello Imran88.

Please check wikipedia: en.wikipedia.org/wiki/Adverse_yaw
Frise aileron section.

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