1. LawStack
  2. Title 14 - Aeronautics and Space
  3. Chapter I - FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
  4. Subchapter C - AIRCRAFT
  5. Part 29 - AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT
  6. Subpart D - Design and Construction
  7. Topic - Rotors
  8. 14 CFR § 29.659
14 CFR § 29.659
Mass balance
July 13, 2020
CFR

(a) The rotor 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.

[Amdt. 29-3, 33 FR 967, Jan. 26, 1968]

Previous
§ 29.653 Pressure venting and drainage of rotor blades
Next
§ 29.661 Rotor blade clearance

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