← Back to Aviation Glossary
P-Factor
Asymmetric propeller thrust that appears at a high angle of attack when the descending blade takes a bigger bite of air than the ascending blade. In a typical U.S. trainer with a clockwise-rotating propeller, P-factor yaws the nose left and is one of the four left-turning tendencies corrected with right rudder in the climb.
Want to go beyond the definition? This term is covered in depth in AviatorPro's Private Pilot License ground school.
Learn more in Private Pilot License →Related Terms
- PAPI (Precision Approach Path Indicator)A visual approach slope indicator system using a row of light units beside the runway to show whether the aircraft is above, on, or below the desired glide path. A disabled or NOTAMed PAPI can change a night or VFR approach plan.
- Part 141Title 14 CFR Part 141 — the FAA regulation governing pilot schools that operate under an FAA-approved curriculum. Part 141 schools offer structured training programs that may allow students to complete certificates with fewer minimum flight hours.
- Part 147Title 14 CFR Part 147 — the FAA regulation governing aviation maintenance technician schools. Part 147 schools provide the training required to earn Airframe and Powerplant (A&P) certificates for aircraft maintenance.
- Part 61Title 14 CFR Part 61 — the FAA regulation governing certification of pilots, flight instructors, and ground instructors. Part 61 training allows flexible scheduling and is the most common path for private pilot students.