Hi all

I am looking to design and build a .60 sizedpattern plane. My first attempt had a couple of problems. The most significant was pitch up in knife edge. How can this be eliminated aerodynamically on my next design? What constitutes a 'perfect' elevator/rudder configuration?' Someone told me that the elevator must be moved down but I am skeptical of this as it is already below the line of the wing.

Also, what elevator moment to wingspan ratio is the 'golden rule' for a competitive pattern plane?
Lastly, is it possible to build a competitive .60 sized pattern plane fuselage out of foam/fibreglass composite?

When I say 'competitive' I am never going to win anything, I just don't want to be embarrased!!
Thanks
Gareth