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CA.V.C.K2dFAA-S-ACS-7B · Nov 2023Knowledge

d. Accelerated stalls

ACS element text (the applicant demonstrates understanding of)

Aerodynamics associated with chandelles, including: d. Accelerated stalls

Bottom line

An airplane can stall at a higher indicated airspeed when subject to an acceleration greater than +1G, such as when turning, pulling up, or other abrupt changes in flightpath.

Key numbers

Key numbers for d. Accelerated stalls
NumberWhat it means
Any time G-load exceeds +1GAccelerated stall
Greater than 2 Gs reduces altitude gainChandelle pull-up
Approximately 45°Practice bank
Near design maneuvering speedEntry speed

FAA references

  1. AFH ch. 5, Accelerated Stalls (p. 5-19) — FAA-H-8083-3C
  2. PHAK ch. 5 (pp. 5-36–5-37) — FAA-H-8083-25C (2023)
  3. AFH ch. 18 (p. 18-9) — FAA-H-8083-3C
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