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CA.IV.E.R2eFAA-S-ACS-7B · Nov 2023Risk management

e. Takeoff surface/condition

ACS element text (the applicant demonstrates understanding of)

Effects of: e. Takeoff surface/condition

Bottom line

Any surface that is not hard and smooth increases the ground roll during takeoff. Puddles, soft spots, areas of tall and/or wet grass, loose gravel, etc., may impede acceleration or even cause deceleration. The entire length of the runway should be inspected prior to takeoff to ensure a usable surface.

FAA references

  1. RMH ch. 3 (p. 3-7) — FAA-H-8083-2A
  2. AIM 7-6-8 (Use of Runway Half-way Signs at Unimproved Airports) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  3. PHAK ch. 11 (p. 11-12) — FAA-H-8083-25C (2023)
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