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PA.VIII.B.R8FAA-S-ACS-6C · Nov 2023Risk management

Trimming the aircraft.

ACS element text (the applicant demonstrates understanding of)

Trimming the aircraft.

Bottom line

Trimming refers to relieving any control pressures that need to be applied by the pilot to the control surfaces to maintain a desired flight attitude. The desired result is for the pilot to be able to take his or her hands off the control surfaces and have the aircraft remain in the current attitude. An aircraft is trimmed for a specific airspeed, not pitch attitude or altitude.

FAA references

  1. IFH ch. 7 (p. 7-45) — FAA-H-8083-15B
  2. IFH ch. 7 (p. 7-43) — FAA-H-8083-15B
  3. AFH ch. 5, Performing the Slow Flight Maneuver (p. 5-11) — FAA-H-8083-3C
  4. PHAK ch. 6 (p. 6-10) — FAA-H-8083-25C (2023)
  5. AFH ch. 16 (p. 16-17) — FAA-H-8083-3C
  6. RMH ch. 3 (p. 3-6) — FAA-H-8083-2A
  7. AIH ch. 9 (p. 9-10) — FAA-H-8083-9B
  8. AFH ch. 9 (p. 9-28) — FAA-H-8083-3C
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