ORIGINAL: Stratman
Hi can anyone help with aerodynamic questions?
7 It requires alot of up elevator to fly any speed and lots of down when inverted7
This tells you that it is nose heavy. Move the CG back to 5" and try it there. The other clue that it's nose heavy is running out of elevator authority at low (landing) speeds. By all means, use exponential if you have it! Try holding the servo arm in place and flexing the elevator by hand. Does the pushrod bend? If it does you need to stiffen/replace it.
Brad