ORIGINAL: JoelW
Hello Mickey,
Good point! thrustline will be the biggest problem with your design that does not require a horizontal stabilizer. However, if a horizontal is included in the design there would be a immediate trim change required as the aircraft went inverted. Another problem might arrise as the mass of the aircraft is now above the rotor. No pendulum effect for stabilization? If the mass of the airframe was light enough it might not be as much of a problem.
Maybe this won't be too easy without a fly by wire system utilizing a flight control computer,
Joel
First pendulum stability is not what you think it is. Helicopters are more stable upside down than upright.
The pendulum effect is actually de-stabilizing.
The problem is the angle between the motor and the rotor, in my case 112degrees. This would
need to be 68 degrees for inverted. The stabilizer angle is not an issue for me as I don't have one.
I'm thinking of rigging the motor parallel to the rotor so it won't change inverted.
Perhaps a pusher would be better for this.
I have to give it a think. Maybe by february at spring hill....