AA.I.D.K9FAA-S-ACS-11A · Nov 2023Knowledge
Factors which contribute to airplane upsets at high altitude and upset prevention and r...
Factors which contribute to airplane upsets at high altitude and upset prevention and recovery techniques.
Bottom line
Consistent with the Guide, the FAA considers an upset to be an event that unintentionally exceeds the parameters normally experienced in flight or training.
Key numbers
| Number | What it means |
|---|---|
| greater than 25° nose up defines an upset | Pitch up |
| greater than 10° nose down defines an upset | Pitch down |
| greater than 45° defines an upset | Bank |
FAA references
- AFH ch. 5, Defining an Airplane Upset (p. 5-1) — FAA-H-8083-3C
- AC 61-138, para. 14.1.3.2 — AC No: 61-138A
- AC 61-107, para. 1-4 — AC No: 61-107B
- AC 120-111 Appendix 1 — AC No: 120-111
- AC 120-111, para. 2-2 — AC No: 120-111
- AFH ch. 5, Academic Material (Knowledge and Risk Management); Common Errors (pp. 5-6–5-7) — FAA-H-8083-3C
Build understanding you can use
Unlock the full lesson and continue studying this element.
- Full teaching sections: What it is; Key points; Rules and numbers; How it is done
- Check your understanding with answers you can reveal
- Common mistakes paired with the FAA facts that correct them