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AI.X.I.R2FAA-S-ACS-25 · Nov 2023Risk management

Range and limitations of stall warning indicators (e.g., aircraft buffet, stall horn, e...

ACS element text (the applicant demonstrates understanding of)

Range and limitations of stall warning indicators (e.g., aircraft buffet, stall horn, etc.).

Bottom line

A “stick shaker,” on the other hand, provides stall warning when the airspeed is five to seven percent above stall speed. The stall situation can be aggravated by a T-tail configuration, which affords little or no pre-stall warning in the form of tail control surface buffet.

FAA references

  1. PHAK ch. 5 (pp. 5-48–5-49) — FAA-H-8083-25C (2023)
  2. AFH ch. 13 (p. 13-26) — FAA-H-8083-3C
  3. AFH ch. 5, Slow Flight (p. 5-9) — FAA-H-8083-3C
  4. PHAK ch. 5 (p. 5-27) — FAA-H-8083-25C (2023)
  5. AFH ch. 13, Level Off and Cruise (p. 13-18) — FAA-H-8083-3C
  6. AFH ch. 13, Short-Field Takeoff and Climb (p. 13-18) — FAA-H-8083-3C
  7. AFH ch. 5, Spin Awareness (p. 5-22) — FAA-H-8083-3C
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