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PA.I.D.K2FAA-S-ACS-6C · Nov 2023Knowledge

Altitude selection accounting for terrain and obstacles, glide distance of airplane, VF...

ACS element text (the applicant demonstrates understanding of)

Altitude selection accounting for terrain and obstacles, glide distance of airplane, VFR cruising altitudes, and effect of wind.

Bottom line

Select an altitude that satisfies terrain clearance, weather, airspace and aircraft capability together.

FAA references

  1. PHAK ch. 16, Navigation — FAA-H-8083-25C (2023)
  2. 14 CFR 91.159 — Current eCFR checked 2026-11-05
  3. 14 CFR 91.119 — Current eCFR checked 2026-11-05
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