CA.VII.D.K1FAA-S-ACS-7B · Nov 2023Knowledge
Aerodynamics associated with accelerated stalls in various airplane configurations, inc...
Aerodynamics associated with accelerated 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 is the result of exceeding the critical angle of attack, not of insufficient airspeed. It is possible to stall the wing at any airspeed, at any flight attitude, and at any power setting.
Key numbers
| Number | What it means |
|---|---|
| 16°–20° depending on airplane design | Critical AOA |
| 2G load factor, stall speed 41% higher than 1G | 60° bank |
| 1.41 load factor in level altitude turn | 45° bank |
| Stalling speed increases at the square root of the load factor | Stall speed vs load |
| Design load factor up to 3.8 | Standard category |
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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