AA.V.A.K2FAA-S-ACS-11A · Nov 2023Knowledge
Stall characteristics as they relate to airplane design, and recognition impending stal...
Stall characteristics as they relate to airplane design, and recognition impending stall and full stall indications using sight, sound, or feel.
Bottom line
Impending Stall—an impending stall occurs when the AOA causes a stall warning, but has not yet reached the critical AOA. Full Stall—a full stall occurs when the critical AOA is exceeded.
Key numbers
| Number | What it means |
|---|---|
| 2 seconds | Full aft stop |
| 3,000 feet AGL (multiengine, or higher if AFM/POH recommends) | Stall practice |
| 1.7 × stalling speed (older general aviation airplanes) | Maneuvering speed |
FAA references
- AFH ch. 5, Stalls; Stall Recognition (pp. 5-12–5-13) — FAA-H-8083-3C
- AC 120-109, para. 1-7 — AC No: 120-109A
- AFH ch. 13 (pp. 13-18–13-19) — FAA-H-8083-3C
- PHAK ch. 5 (p. 5-35) — FAA-H-8083-25C (2023)
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