ED Decision 2021/016/R
(See AMC1Â 27.631)
Rotorcraft with six or more passenger seats must be designed to ensure a safe landing after a strike upon the windshield by a 1.0-kg (2.2-lb) bird when the velocity of the rotorcraft relative to the bird along the flight path of the rotorcraft is equal to VNE or VH âTrue Airspeedâ (TAS), whichever is less, at altitudes up to 2Â 438Â m (8Â 000 ft). The applicant must demonstrate compliance through tests, or analysis based on tests that are carried out on sufficiently representative structures of similar design.
[Amdt 27/9]
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