P-Factor(P-factor)

Definition

Asymmetric propeller thrust that causes yaw, most noticeable at high power and high angle of attack. The descending propeller blade produces more thrust than the ascending blade due to its greater effective angle of attack.

Related Terms

Adverse Yaw

The tendency of an aircraft to yaw in the opposite direction of a roll input. Ca...

Torque Effect

The reaction force to propeller rotation that tends to roll the aircraft in the ...

Left-Turning Tendencies

Four forces that cause a single-engine propeller aircraft to yaw or roll left: t...

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