Form drag. This is part of it, but if you doubt the fact of an exponential drag increase at lower speeds due to the byproduct of lift, do a forward slip at say 85-90 kts and you will see that the airplane hardly loses any more altitude than it would without the crossed control inputs. Once high AOA starts inducing a lot of drag, the crossed inputs places the side of the aircraft broadside to the wind, this is indeed form drag. However, form drag does not exponentially increase by slowing down, it exponentially increases by speeding up. This is why hi-speed aircraft are shaped to make their surfaces line up smoothly with the wind. If you know how induced drag acts with change of airspeed you can control it.
And with this I have hit my 500th useless post, which if you ask me deserves some celebrating.
Last edited by Cubdriver; 09-07-2007 at 12:56 PM.