AI.IX.A.K1FAA-S-ACS-25 · Nov 2023Knowledge
Purpose of and procedures for steep turn.
Purpose of and procedures for steep turn.
Bottom line
Load factors become significant to both flight performance and load on wing structure as the bank increases beyond approximately 45 degrees. Banking an aircraft greater than 72 degrees in a steep turn produces a load factor of 3, and the stalling speed is increased significantly. A pilot should be aware of the danger of inadvertently stalling the aircraft by increasing the load factor, as in a steep turn or spiral.
Key numbers
| Number | What it means |
|---|---|
| 3 Gs at bank greater than 72 degrees in a steep turn | Load factor |
| bank beyond approximately 45 degrees | Significant loads |
| average light plane at bank of approximately 70 to 75 degrees | Yield factor |
FAA references
- PHAK ch. 5 (p. 5-36) — FAA-H-8083-25C (2023)
- PHAK ch. 5 (p. 5-35) — FAA-H-8083-25C (2023)
- AFH ch. 17 (p. 17-13) — FAA-H-8083-3C
- AIH ch. 3 (p. 3-24) — FAA-H-8083-9B
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