Baby Ring - Positive angle of incidence???

Bob,

For my first Beginner's Ringmaster, I did put in the positive incidence.  The positive incidence is there for a beginner pilot who is just trying to keep the plane in the air without crashing and not going to be flying inverted, and has helped the two pilots I used the plane to introduce to CL flying.  For my Baby RM, I didn't have any positive incidence.  I guess it's been a while, but I don't remember there being positive incidence in the Baby RM plans I used.  

For the beginner pilot, the balance point is farther forward than a normal stunt design to keep the plane stable and non-twitchy.  With the balance point forward of optimal, the positive incidence of the wing helps the plane fly level at speed.  Since you're beyond the "let's keep it simple so you don't crash going roundy-roundy" stage, just leave off the incidence and make everything inline.  That'll make every maneuver other than inside loops fly better.

When I did my second Beginner's RM last year using 4" SIG airfoiled balsa, I left everything inline and it flies great.  See the pics and video in the 9th post of "this" thread.  The positive incidence would definitely not be wanted with the airfoil shaped balsa wing.

The "Has An Answer For Everything" Mark

Thanks guys. That makes sense Mark. I will shoot for zero, but with my eyes and shaky hands I never know what I will get. But if I make an error I hope it will be on the positive side.