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AI.X.B.K7fFAA-S-ACS-25 · Nov 2023Knowledge

f. Stalling speeds

ACS element text (the applicant demonstrates understanding of)

Airspeeds specific to the airplane for various operations, how to identify them on the airspeed indicator (if applicable), and their significance in airplane performance, including: f. Stalling speeds

Bottom line

Stall speeds in various configurations are performance information found in the flight manual's Performance section. Performance speeds vary with aircraft weight, configuration, and atmospheric conditions.

Key numbers

Key numbers for f. Stalling speeds
NumberWhat it means
sea level, standard day, maximum takeoff weight (unless otherwise noted)V-speed basis
single-engine rate of climb at 5,000 feet MSL at least 0.027 VSO² (over 6,000 lbs and/or VSO over 61 knots)Multiengine climb rule

FAA references

  1. PHAK ch. 9 (p. 9-4) — FAA-H-8083-25C (2023)
  2. AFH ch. 13 (pp. 13-2–13-3) — FAA-H-8083-3C
  3. AIH ch. 9 (p. 9-9) — FAA-H-8083-9B
  4. PHAK ch. 11 (p. 11-11) — FAA-H-8083-25C (2023)
  5. AFH ch. 3 (p. 3-23) — FAA-H-8083-3C
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