14 C.F.R. § 29.629 Flutter and divergence.
Title 14 - Aeronautics and Space
Each aerodynamic surface of the rotorcraft must be free from flutter and divergence under each appropriate speed and power condition. [Doc. No. 28008, 61 FR 21907, May 10, 1996]
Title 14: Aeronautics and Space
PART 29—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT
Subpart D—Design and Construction
General
§ 29.629 Flutter and divergence.