The best explanation by far on how the flight controls on an aircraft work
was written by Maximilian Foster in OUTING Magazine May 1909.

Republished in the book "Early Flight from Ballons Tp Biplanes"
Published in 1987 by Castle
ISBN 1-55521-227-1

I was very impressed when I read this 11 page article with pictures
of the Wright brother and Glen Curtiss flying.

I have searched for this book on Google so apparently it is very
rare book. I found a copy in the $5 book store in Semi Valley California.

If I get some interest I will scan part of  it and OCR convert it to text.

"As to Frise aileron - Frise's design is a very specific geometry to achieve a protrusion
of the aileron's lower edge below the wing to add drag when the aileron is up, and minimize adverse yaw."

It works extremely well on my C182.

Basically it reduces the need for a rudder during turns. The rudder control was basic to the Wright
invention.

Paul Lamar

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