Re: KR> RAF-48

2020-03-14 Thread Chris Kinnaman via KRnet
Mike, Not correcting your theory or practice of low-drag flying, just the Spitfire airfoil part. Spitfires had a NACA 2213 airfoil at the root, tapering to 9% (2209) near the tip and washed out to keep the elliptical planform from stalling all at once across the span. Chris K. On 3/13/2020

Re: KR> AS5046 wings on RAF48 inner stub wing?

2020-03-14 Thread Mark Langford via KRnet
Samuel Spanovich wrote: >> I am curious if this is even possible, let alone a good idea. I’ve heard nothing but good things about the new airfoil wings, and certainly wouldn’t mind having them on my existing KR, however I am curious if they can be ran without modifying the inner stub wing uti

Re: KR> RAF-48

2020-03-14 Thread Lee Van Dyke via KRnet
With all that being said, Dan Diehl once told me that he would build another KR2 and change the angle of attack of the RAF airfoil by 2 degrees, so the speed of the plane would not make it “Plow” through the air. And increase airspeed by the loss of drag. Lee Van Dyke > On Mar 13, 2020, at