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AI.X.C.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

Indications of an impending stall can include buffeting, stick shaker, or aural warning. A “stick shaker,” on the other hand, provides stall warning when the airspeed is five to seven percent above stall speed. Most vintage airplanes, and many types of light-sport and experimental airplanes, do not have stall warning devices installed.

FAA references

  1. PHAK ch. 5 (pp. 5-48–5-49) — FAA-H-8083-25C (2023)
  2. AFH ch. 5, Stall Recognition; Stalls (pp. 5-12–5-13) — FAA-H-8083-3C
  3. AFH ch. 5, Slow Flight; Angle of Attack (p. 5-9) — FAA-H-8083-3C
  4. AFH ch. 13 (pp. 13-19–13-20) — FAA-H-8083-3C
  5. AFH ch. 13 (p. 13-19) — FAA-H-8083-3C
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