carl.froehlich(at)verizon
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 Posted: Sat Aug 25, 2012 4:32 pm Post subject: HS angle of incidence |
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All,
Bad weather today so I’m stuck at 39.1 hours. Here are some test results you may find of interest.
Attached photos are of the elevator horns at different CGs, with and without a .040” shim under the HS forward spar. While solo (most forward CG condition - 109”) I noted a small elevator trailing edge down situation leading me to believe the HS angle of incidence was too low (too much downward force) as the elevator trailing edge down trim would be imparting an upward force. Also attached is a photo of the elevators with the CG at 114.5” (the most aft I would practically experience).
I note that even with the shim I have a lot of up nose trim left in landing configuration when solo, the most forward CG condition. My take is the .040 shim helped with the HS rigging, but it may not be enough. I may replace the it with a .063” shim.
What have others experienced?
Carl
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