Some may think this should be in the spad forum. But, it fits better here for me. Thank you in advance for your in-put.

I have gutter plane (gutter downspout, coraplaste design) that is really fun to fly. The problem with the plane is; with throttle set around mid, and plane trimmed to level flight. When you accelerate the plane climbs (at full throttle it will go to the moon, and will continue to loop) and with deceleration it noses over hard. At mid and above throttle, inverted, the plane noses towards earth. Oh, and if it makes a difference, it will flat spin like a frizzbie.

A little background on the design. It is short (regional maker design), I call it my Indy car plane. the fuse is 30" plus a OS FX.46 out front, and 2.5 inches of elevator out the rear. The wing is coreplaste 48" wingspand (totally symmetrical) and 11" wide plus 2.25" alieron. The wings leading edge is 5.5" back from back of the OS 46. The distance between the tailing edge of the alieron, and the leading edge of the horizontal stab is approximately 10". The horizontal stab ends at the approximate end of the fuse.

I have moved the CG back and forth some. I lifted the rear of the wing by .25" to change the angle of attack.


HEELLLP.......