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PA.IV.G.S10FAA-S-ACS-6C · Nov 2023Skills

Rotate and lift off at the recommended airspeed, and accelerate to the recommended obst...

ACS element text (the applicant demonstrates understanding of)

Rotate and lift off at the recommended airspeed, and accelerate to the recommended obstacle clearance airspeed or VX.

Bottom line

In most cases, the seaplane lifts off as it reaches flying speed. The sloshing of water in the floats can create substantial CG changes as the seaplane is rotated into a climb attitude.

FAA references

  1. AFH Glossary (p. G-18) — FAA-H-8083-3C
  2. SEA ch. 4 (p. 4-12) — FAA-H-8083-23
  3. SEA ch. 5 (p. 5-1) — FAA-H-8083-23
  4. PHAK ch. 11 (p. 11-8) — FAA-H-8083-25C (2023)
  5. AFH ch. 16 (p. 16-17) — FAA-H-8083-3C
  6. AIM 7-6-7 (Mountain Flying) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  7. RMH App. C (p. C-1) — FAA-H-8083-2A
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