P-factor
AERODYNAMIC PHENOMENON EXPERIENCED BY A MOVING PROPELLER, WHERE THE PROPELLER'S CENTER OF THRUST MOVES OFF-CENTER WHEN THE AIRCRAFT IS AT A HIGH ANGLE OF ATTACK
P factor; Asymmetric blade effect
P-factor, also known as asymmetric blade effect and asymmetric disc effect, is an aerodynamic phenomenon experienced by a moving propeller,) where the propeller's center of thrust moves off-center when the aircraft is at a high angle of attack. This shift in the location of the center of thrust will exert a yawing moment on the aircraft, causing it to yaw slightly to one side.