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Old 10-20-2008 | 10:25 PM
  #1310  
mrcasey69
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From: Calgary, AB, CANADA
Default RE: GP Super Stearman

I set the plane up on the bench and checked some things out. With the horizontal stab leveled at zero, the lower wing was at pos. 0.5 degrees, the upper wing was at neg. 0.5 degrees anf the engine thrust line was at - neg. 0.5 degrees. Needless to say I was surprised. None of this should cause too much in the way of the kind of flight characteristics I am experiencing. As far as I am concerned, the net result of that sould be pretty good. I am now suspecting that my C of G is the culprit. I did check it twice. I may have goofed up; or, perhaps, 5.5 inches from the leading edge of the top wing may not be the ideal C of G for MY plane's configuration?

I will double check my C of G and perhaps move some things around to bring it more foreward, regardless of the new measurement. I will also add a 4 washers (not too thick) to the back bolts for the top wing where it attaches. I am including a few shots from the side of the Stearman. The way it looks (in person at least) seems to confirm the readings I took tonight.
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