P-factor: See asymmetric disk loading, 8.5
P: ≡ pressure, 3.4
PIC: ≡ pilot in command, 21.1
Pitot tube, 2.12.6, 3.4.2, 11.2
POH: ≡ Pilot's Operating Handbook, 1.2.3
Pressure: definition, 3.4.3 ...
P-factor, or asymmetric disc effect or asymmetric blade effect, occurs when the thrust line is not aligned with the flight path i.e. when flying with a high angle of attack.
Approaches, P-factor and an Erratic Skid Ball
If you’d like to see a clear demonstration of the interplay between power, torque and P-factor (asymmetric thrust/drag caused by the prop) try this little exercise the next time you’ ...
Also known as P-factor. A tendency for an aircraft to yaw to the left due to the descending propeller blade on the right producing more thrust than the ascending blade on the left.
Due to P-factor, the right-hand engine typically develops its resultant thrust vector at a greater lateral distance from the aircraft's C.G. than the left-hand engine.
I use the words appropriate amount because it's possible that you may not even need to apply left rudder when entering a climbing left-hand turn thanks to our good friends P-factor, torque, the propeller slipstream and gyroscopic precession.
 See also: Flight, Power, Aircraft, Lift, Propeller
  
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