ORIGINAL: DarZeelon
It still stands that a vertical hover is neither upright, nor inverted and that the torque effect is (or at least should be) countered using the ailerons; not the rudder...
That's my point Dar, I don't need right-thrust/rudder to trim my models for a vertical hover they hover just fine with 0/0.
If your models yaws as a result of aileron input, you should probably change the ATV of the aileron servos, to tailor-out that effect.
No they don't yaw with aileron.
The P-Factor is evident during take-off; hardly in hovering...
Not in hovering but *very* apparent when harriering (where the plane of propeller rotation may be at 45 degrees or more to the axis of forward flight).