Major Tomski,
My point is, that gyroscopic preseccion is, a force applied acts 90 degrees later. This tells me, that the force resulting from more thrust created from the right tip and less thrust created from the left tip, which is a force yawing left, takes effect 90 degrees later, and should cause a pitch up. I really don't see how this is different from a helicopters rotor disk, except here, the different AOA of the tips are controlled with the swash plate, but to make the heli pitch forward, you increase the AOA of the receding blade, and decrease the AOA of the advancing blade.

I can certainly see how a tail dragger on the ground with engine running WOT will want to yaw like crazy, but I think that's more due to the swirling slip stream hitting the rudder and fuse, than to what's described as the P-Factor. And the reason this is so much worse on a tail dragger than a tri gear, is that a trigear has the steering wheel firmly planted on the tarmac until lift off, whereas the tail dragger has the tail flagging in the air, very succeptical to any air stream.

DKjens