actually with planes such as f-16's, there lift is created by the wings, untill the angle of attack becomes so great that the lift is no longer generated by the air moving over the wings, but is actually created by the thrust of the engine alone...as for most rc planes the power to weight ratio is so great that the lift generated by the wings is really only needed for straight and level flight. thats why we can acheive crazy manuvers that cant be done in a real plane.