Originally Posted by
Fl1ingfrog
Why would it change at all, the relationship of the propeller to the aeroplane remains the same? Of course, the propeller slipstream stretches and the yawing force from this will therefore reduce with the airspeed increasing but it will always be present. At the slow take-off speed the slipstream yawing force will still be substantial and require a sustained application of opposite rudder.
On my airplane raising the tail causes a 12-13 degree change in pitch attitude and a corresponding change in the angle of attack of each propeller blade. With the tail down the downward moving blade has a higher angle of attack and produces more thrust than the upward moving blade. When the tail is up both blades have the same angle of attack and both produce the same thrust. It is the relationship of the propeller to the airflow that changes, not the relationship of the propeller to the airplane. (refer to explanations of P - factor)
This is probably over simplified but I am only talking about what changes when the tail is raised.