RE: P factor
Sean,
We must of had the same freshman physics teacher....did the same deminstration anyway. As the tail comes up off the ground then there would be a nose down and left movement. Never did quit get the thumb, finger thing. My five year old son has a pull string "engine" pack for his power rangers car and I have just been cranking it up to see the qyroscopic effect.
Bill,
Thanks for the info....the more I look at whats happening during takeoff it is suprising that we ever get planes off the ground.
Steve