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  5. § 27.67
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14 CFR · Part 27

14 CFR § 27.67

Climb: one engine inoperative.

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Read in Subpart B
Part 27 Contents
  • Subpart A: General
  • Subpart B: Flight
  • Subpart C: Strength Requirements
  • Subpart D: Design and Construction
  • Subpart E: Powerplant
  • Subpart F: Equipment
  • Subpart G: Operating Limitations and Information
  • Appendix A to Part 27: Instructions for Continued Airworthiness
  • Appendix B to Part 27: Airworthiness Criteria for Helicopter Instrument Flight
  • Appendix C to Part 27: Criteria for Category A
  • Appendix D to Part 27: HIRF Environments and Equipment HIRF Test Levels

For multiengine helicopters, the steady rate of climb (or descent), at Vy (or at the speed for minimum rate of descent), must be determined with—

(a)

Maximum weight;

(b)

The critical engine inoperative and the remaining engines at either—

(1)

Maximum continuous power and, for helicopters for which certification for the use of 30-minute OEI power is requested, at 30-minute OEI power; or

(2)

Continuous OEI power for helicopters for which certification for the use of continuous OEI power is requested.

Reflects the eCFR edition current as of September 29, 2026. Retrieved from ecfr.gov on October 16, 2026.

Primary Source

  • Official Source (14 CFR · Part 27)