PA.VII.B.K1FAA-S-ACS-6C · Nov 2023Knowledge
Aerodynamics associated with stalls in various airplane configurations, including the r...
Aerodynamics associated with stalls in various airplane configurations, including the relationship between angle of attack, airspeed, load factor, power setting, airplane weight and center of gravity, airplane attitude, and yaw effects.
Bottom line
A stall results from exceeding the wing's critical angle of attack, not from insufficient airspeed.
Key numbers
| Number | What it means |
|---|---|
| 16°–20° depending on airplane design | Critical AOA |
| 2G load factor, stall speed 41% higher than 1G stall speed | 60° bank |
| 1.41 load factor in level altitude turn | 45° bank |
| increases at the square root of the load factor | Stall speed rule |
FAA references
- AFH ch. 5, Angle of Attack; Coordinated Flight (pp. 5-8–5-9) — FAA-H-8083-3C
- AFH ch. 1 (pp. 1-13–1-14) — FAA-H-8083-3C
- AFH ch. 10 (p. 10-2) — FAA-H-8083-3C
- PHAK ch. 5 (p. 5-27) — FAA-H-8083-25C (2023)
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