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IR.VII.B.R2FAA-S-ACS-8C · Nov 2023Risk management

Inability to climb or maintain altitude with an inoperative engine.

ACS element text (the applicant demonstrates understanding of)

Inability to climb or maintain altitude with an inoperative engine.

Bottom line

VYSE is the single-engine best rate-of-climb speed—the best rate-of-climb or minimum rate-of-sink in a light twin-engine aircraft with one engine inoperative—and it is marked on the airspeed indicator with a blue line.

FAA references

  1. PHAK ch. 8 (p. 8-10) — FAA-H-8083-25C (2023)
  2. RMH ch. 3 (p. 3-1) — FAA-H-8083-2A
  3. IFH ch. 8 (pp. 8-16–8-17) — FAA-H-8083-15B
  4. AFH ch. 9 (p. 9-28) — FAA-H-8083-3C
  5. AFH ch. 6 (p. 6-14) — FAA-H-8083-3C
  6. AFH ch. 2 (p. 2-22) — FAA-H-8083-3C
  7. AFH ch. 9 (p. 9-29) — FAA-H-8083-3C
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