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Old 07-22-2011 | 05:31 PM
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SeamusG
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From: Arvada, CO
Default RE: HowTo Trim a Biplane

The Hog Bipe incidence as specified in the plans is simple: everything is at zero degrees incidence (stab, upper wing and lower wing).

Need to (re)check the thrust angles. I've keep nice notes just don't remember my frame of mind when I put them somewhere that I'd easily remember.

Iwas checking the control surfaces just to make sure that the hinges are in good shape as well as control rods and servos. While putting up/down tention on the elevator there was about 1/8" slop. Very tight at the horn/clevis. Very tight at the servo arm/clevis. However, the servo arm can be wiggled back-n-forth - internal servo slop. The elevator servo has hit the trash bin - nope, no teeth were missing or chipped. There was no damage to the elevator in the mishap (nicer way of saying pilot error resulting in a crash) so this condition could have been a contributor.

Thanks for your input all.