- Feb 21, 2020
- Louisiana (unfortunately)
FAA Requires minimum of three for aileron and four for flap if I am not mistakenTell that to every Varieze, Long-EZ, COZY, Berkut, E-Racer, Velocity, etc. airplane owner. Put the piano hinge on the top surface and voila' - Frise aileron, no problem. These planes use three piano hinges for each aileron, but obviously it could be more, or one continuous hinge, and work exactly the same.