brian.kraut wrote: > On my KR I planned on using flaps, but extending them all the way to the > aft spar instead of just the 6-8" narrow flaps KRs normally have. The > reason the chord of the flaps was so small is to keep them from dragging > on the ground with the short retract gear, but with modern KRs with long > gear legs there is no reason no to extend the chord. I don't think > anyone has tried that before and I don't know why.
That sounds like what I did, except I upped the ante and made my flaps 54" long on each side and split! See http://www.n56ml.com/99101051.jpg for construction of the spar-length flaps and ailerons (http://www.n56ml.com/owings.html for more on wings) and http://www.n56ml.com/900hour/100727679.jpg for the finished flap. I believe this is the ultimate setup, although next time I may use piano hinges to eliminate the hinges in the slipstream, and to speed construction considerably. The big split flaps make a huge difference in drag and drop the stall speed by something like 7 mph. I see Robert Pesak has done his in a similar way. Mark Langford ML at N56ML.com http://www.n56ml.com
