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| So you say to move the CG forward and decrease the rudder to elevator mixing for knife edge flight, right? Won't the elevator end up in the same position as the more aft CG and the higher rudder to elevator mixing during knife edge? Not sure if you gain anything of that's the case. Now if his CG is too aft anyway, I see why it would be better to move it forward. Too aft and it climbs in a head wind, also balloons on landing. No fun. | |
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My guess is that on the trim flight the airplane wanted to climb and down trim was required. The airplane has to fly at a positive AOA just enough to counteract gravity. This is really the only constant. When you move the CG forward the elevator will need to be trimmed once again but this time with up trim. When the airplane is on it's side and the wing is not supporting the weight of the airplane this up trim will help keep the airplane from tucking to the gear.
Shawn