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PA.X.B.S1eFAA-S-ACS-6C · Nov 2023Skills

e. Propellers set for high revolutions per minute (rpm)

ACS element text (the applicant demonstrates understanding of)

Configure the airplane in accordance with the manufacturer’s recommendations, in the absence of the manufacturer’s recommendations, then at safe single-engine speed (VSSE/VYSE), as appropriate, and: e. Propellers set for high revolutions per minute (rpm)

Bottom line

In the VMC demonstration, the pilot sets high rpm on both propeller controls. VMC is highest when the critical engine propeller is windmilling at the low pitch, high rpm blade angle.

FAA references

  1. AFH ch. 13 (p. 13-26) — FAA-H-8083-3C
  2. AFH ch. 13 (p. 13-24) — FAA-H-8083-3C
  3. FAA-P-8740-66, Flying Light Twins Safely — FAA-P-8740-66
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