ORIGINAL: FlyingPilgrim
Grey beard, It's way too late to figure out what was wrong with my GP Cap, It hit hard, and there was not enough left to rebuild. I thought it was odd, as it was a beautiful build, and the wing and tail surfaces were exact as far as incidence, engine thrust set up as per instructions, etc. I fooled around a bit with CG and thrust angle for engine, but, alas, it was destroyed before I could fine tune it. I know a few other modelers have had to modify the engine thrust angle on this plane as well. It is unfortunate I never had the opportunity to figure out what was wrong with it. On the other hand, when I had the GP Extra 300s, it flew perfect right from the get-go.
I've had two of these CAP's and flown the extra. I prefer the CAP it will do much better tumbles, spins etc.. However this particular plane is extremely sensitive to weight. Anything over 5.5 lbs and it will not perform well. My current CAP weighs at 5.25lbs and flies awesome. I got rid of half of the dihedral and it does need downthrust. Also made larger ailerons. It will do excellent walls and harriers (very little wing rock). The rudder and elevator are far more powerful than the extra.
Both planes have the same wing actually.
For building stock the extra is probably the better choice but I think the CAP has more potential. But it has to be light! I dremeled out the fuse, piped webra 50, light weight rx, pull-pull rudder etc.