daleandee wrote:But here we have a Sonex that was built with admitted changes that make the airplane unstable and possibly a danger to both pilot & passenger.
Why hasn't Sonex themselves raised their voice as to what is happening here?
Scott Todd wrote:...........................................................
For review, and those who have not read the entire thread, his airplane was built with different wing and tail incidences. This resulted in added down thrust. He has been trying to find a solution to take the added stick forces out at higher speeds. Raising the flaps was suggested. He did that and it helped. Raising the ailerons was also suggested. He has done that but has yet to fly it again. Adding an elevator fixed trim tab was suggested. This requires some minor fabrication and installation and he has not tried that yet.
Scott Todd wrote:Its not leaping to conclusions. Its geometry. The engine now has 1.5 degrees more down thrust compared to the wing and stab center lines. This will require more nose-up trim and be exaggerated as speeds increase.
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