AA.IV.A.S2FAA-S-ACS-11A · Nov 2023Skills

Establish the manufacturer's recommended airspeed; or if one is not available, an airsp...

ACS element text (the applicant demonstrates understanding of)

Establish the manufacturer's recommended airspeed; or if one is not available, an airspeed not to exceed maneuvering speed (VA).

Bottom line

Accelerated stalls should be performed with a bank of approximately 45°, and in no case at a speed greater than the airplane manufacturer’s recommended airspeed, or the specified design maneuvering speed (VA) or operating maneuvering speed (VO). Full application of pitch, roll, or yaw controls should be confined to speeds below the maneuvering speed. Avoid rapid and large alternating control inputs, especially in combination with large changes in pitch, roll, or yaw (e.g., large sideslip angles) as they may result in structural failures at any speed, including below VA.

FAA references

  1. AFH ch. 5, Accelerated Stalls (p. 5-19) — FAA-H-8083-3C
  2. PHAK ch. 5 (p. 5-36) — FAA-H-8083-25C (2023)
  3. AIH ch. 9 (p. 9-7) — FAA-H-8083-9B
  4. PHAK ch. 8 (p. 8-18) — FAA-H-8083-25C (2023)
  5. PHAK ch. 5 (p. 5-35) — FAA-H-8083-25C (2023)
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