---
kind: "section"
citation: "14 C.F.R. § 27.629"
title: "14"
number: "27.629"
heading: "Flutter."
url: "https://uscodex.org/cfr/14/27.629"
---

# §27.629. Flutter.


Each aerodynamic surface of the rotorcraft must be free from flutter under each appropriate speed and power condition.


## Notes

### Amendments

[Doc. No. 5074, 29 FR 15695, Nov. 24, 1964, as amended by Amdt. 27-26, 55 FR 8000, Mar. 6, 1990]

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44704.

### Source

Source: Docket No. 5074, 29 FR 15695, Nov. 24, 1964, unless otherwise noted.

### Amendments

[Doc. No. 5074, 29 FR 15695, Nov. 24, 1964, as amended by Amdt. 27-26, 55 FR 8000, Mar. 6, 1990]