AI.X.D.K1FAA-S-ACS-25 · Nov 2023Knowledge
Purpose of and procedures for power-on stalls.
Purpose of and procedures for power-on stalls.
Bottom line
Reducing the angle of attack is what eliminates a stall; added thrust allows the descent to be stopped once the wing is flying again. For a given configuration, the airplane always stalls at the same angle of attack, called the critical AOA. Speed by itself is not a reliable parameter to avoid a stall; an airplane can stall at any speed.
Key numbers
| Number | What it means |
|---|---|
| several thousand feet or more, during stall recovery at high altitudes | Altitude loss |
| any speed — an airplane can stall at any speed | Stall speed |
FAA references
- AFH ch. 16 (pp. 16-8–16-9) — FAA-H-8083-3C
- PHAK ch. 5 (p. 5-27) — FAA-H-8083-25C (2023)
- AIH ch. 9 (p. 9-9) — FAA-H-8083-9B
Build understanding you can use
Unlock the full lesson and continue studying this element.
- Full teaching sections: Key points; How it is done
- Check your understanding with answers you can reveal
- Common mistakes paired with the FAA facts that correct them