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AA.V.A.R6FAA-S-ACS-11A · Nov 2023Risk management

Effect of environmental elements on aircraft performance while in a partial flap config...

ACS element text (the applicant demonstrates understanding of)

Effect of environmental elements on aircraft performance while in a partial flap configuration as it relates to stalls (e.g., turbulence, microbursts, and high-density altitude).

Bottom line

Increased load factor directly affects stall speed (as well as do other factors such as gross weight, center of gravity, and flap setting). Maintain awareness of conditions that can lead to various types of turbulence, such as clear air turbulence, mountain waves, wind shear, and thunderstorms or microbursts.

FAA references

  1. PHAK ch. 12 (pp. 12-10–12-11) — FAA-H-8083-25C (2023)
  2. RMH ch. 3 (p. 3-7) — FAA-H-8083-2A
  3. AFH ch. 1 (p. 1-14) — FAA-H-8083-3C
  4. AFH ch. 5, Angle of Attack (p. 5-9) — FAA-H-8083-3C
  5. AC 120-109, para. 4-2 — AC No: 120-109A
  6. AFH ch. 5, Environmental Factors (p. 5-2) — FAA-H-8083-3C
  7. AFH ch. 9 (p. 9-4) — FAA-H-8083-3C
  8. AC 120-109, para. 2-2 — AC No: 120-109A
  9. AFH ch. 13 (p. 13-18) — FAA-H-8083-3C
  10. AC 120-109 Appendix 3 — AC No: 120-109A
  11. AFH ch. 9 (p. 9-6) — FAA-H-8083-3C
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