ORIGINAL: Red B.
ORIGINAL: 3D_Junkie
The effect that you guys are talking about with the warbirds (or any single engine aircraft) is from P-factor not slipstream effects on the rudder.
As a mattor of fact, both P-factor and slipstream effects contribute to the yawing tendency during take-off.
P-Factor does not really come into play during 3-D flight since the forward motions are small and there is really not a difference in the angle-of-attack of the propeller during flight.
I could be wrong though, as I am sure someone will point out.
Some 3D maneuvers involves flying at high alpha, i.e., high angle of attack, at low speed. In those cases I would think that the P-factor does contribute significantly.
It's hard to say how big of an effect it has, but I think the p-factor is low on the list of effecting variables while in high-alpha flight. There are many variables to be considered; motor torque, slipstream effects on the airframe and rudder, wind gusts, prop wash on control surfaces, etc. All of which are continuously changing. Once I get my hybrid up and flying, I will let you all know how it flies without right thrust.