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P-factor is most pronounced under which condition?
Choices
✓ High power and high angle of attack, such as in a climbcorrect
The descending blade takes a larger bite at high AoA and high power, yawing the nose left.
Low power and low angle of attack in a descent
P-factor is minimal at low power and low angle of attack.
While parked with the engine off
P-factor requires the propeller to be producing thrust in flight.
In a steep descent at idle power
Idle power and low AoA minimize P-factor.
Why
At high angle of attack and high power the descending propeller blade produces more thrust than the ascending blade, yawing the nose left; this is greatest in the climb and is countered with right rudder.
FAA source: PHAK Ch. 5browse the reference library →
Original study question written for this course — representative of FAA knowledge-test topics, not an actual current FAA exam question.