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A helicopter with a maximum mass of more than 9 072 kg (20 000 lb) and 10 or more passengers seats is certificated in...

  • A

    Category A and B.

  • B

    Category B.

  • C

    Category A.

  • D

    Category A or B.

CS 27 and CS 29 cover the Airworthiness Requirements applying to small and large rotorcraft respectively.

According to CS 29.1 - Applicability:

  • Large rotorcraft must be certificated in accordance with either the Category A or Category B requirements. A multi-engine rotorcraft may be type certificated as both Category A and Category B with appropriate and different operating limitations for each category.

  • Rotorcraft with a maximum weight greater than 9072 kg (20 000 pounds) and 10 or more passenger seats must be type certificated as Category A rotorcraft.

  • Rotorcraft with a maximum weight greater than 9072 kg (20 000 pounds) and nine or less passenger seats may be type certificated as Category B rotorcraft provided the Category A requirements of Subparts C, D, E, and F are met.

  • Rotorcraft with a maximum weight of 9072 kg (20 000 pounds) or less but with 10 or more passenger seats may be type certificated as Category B rotorcraft provided the Category A requirements of CS 29.67(a)(2), 29.87, 29.1517, and of Subparts C, D, E, and F are met.

  • Rotorcraft with a maximum weight of 9072 kg (20 000 pounds) or less and nine or less passenger seats may be type certificated as Category B rotorcraft.


According to CS 27.1 - Applicability:

  • Small rotorcraft with maximum weight of 3 175 kg (7 000 lb) or less and a MOPSC of 9 or less are certified under CS 27.

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