RE: Will increasing the thickness of a biplane wing decrease the stall speed, or just add useless dr
tonyc- You would probably agree that the Cermark is a easy flying airplane; take-offs and three-point landings at walking speed are easy, and they don't take a grey-beard on the sticks. TallPaul, I am sure there are lots of bipes(vast majority?) that are treacherous buggers, and my experience is probably less than yours, but all I can speak to is my own limited experience. I heard a lot of "How hard is it to fly?" from a lot of fellow flyers with a couple of years on the sticks; I let several try the sticks, and without exception they all remarked how gently it flew compared to my club's unofficial "mandatory" models, the Sig Somethin' Extra and the GP Dazzler. If anyone cares, I can furnish more info on the Cermark setup-incidence, design changes, etc...JIM