Code of Federal Regulations · Section

§ 27.659 — Mass Balance

14 C.F.R. § 27.659

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(a) The rotors and blades must be mass balanced as necessary to—

(1) Prevent excessive vibration; and

(2) Prevent flutter at any speed up to the maximum forward speed.

(b) The structural integrity of the mass balance installation must be substantiated.

14 C.F.R. § 27.653 14 C.F.R. § 27.661

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