RE: What is a gyro?
John, your tri-motors reminded me of this video a friend sent me a couple months back. I think you'll get a kick out of it. Argggggg. I should have checked the link before I posted it. It's defunct now. I'll see if I can find the clip in the way back machine and post it. It was a 30's movie of a Ford Tri Motor doing some aerobatics.
By the way, I think you are right about to much gain. I remember that if I would hold the plane level and then pop the tail one side or the other, it would just about peg the rudder. I haven't played with it in close to four years now. I'll dig it out and make sure I install it when I get to that point.
Don