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AI.II.F.R3FAA-S-ACS-25 · Nov 2023Risk management

Possible differences between calculated performance and actual performance.

ACS element text (the applicant demonstrates understanding of)

Possible differences between calculated performance and actual performance.

Bottom line

The performance information in the AFM/POH has little or no value unless the user recognizes those variations and makes the necessary adjustments. Expect a decrease in overall performance in high humidity conditions.

FAA references

  1. PHAK ch. 11 (p. 11-28) — FAA-H-8083-25C (2023)
  2. PHAK ch. 11 (p. 11-2) — FAA-H-8083-25C (2023)
  3. AIH ch. 1 (pp. 1-20–1-21) — FAA-H-8083-9B
  4. PHAK ch. 11 (p. 11-5) — FAA-H-8083-25C (2023)
  5. RMH ch. 3 (p. 3-6) — FAA-H-8083-2A
  6. AFH ch. 2 (p. 2-14) — FAA-H-8083-3C
  7. PHAK ch. 16 (p. 16-21) — FAA-H-8083-25C (2023)
  8. AFH ch. 16 (p. 16-20) — FAA-H-8083-3C
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