I just soloed about 3 weeks ago and have since opened up my avistar doing loops, rolls, and inverted flight and such. I know the avistar isn't an aerobat but I have been trying to clean up some of my maneuvers. I can't get it to knife edge. I have alot of rudder movement but it falls like a rock. It has an os 46fx and I have been going full throttle hoping the speed would help. I know speed alone isn't the key because I've seen an edge doing one pretty slow. I've tried entering it while ascending, but it still falls. What is necessary for a plane to do this? Do you need a big broad fuselage to provide lift while the plane is on it's side?