---
kind: "section"
citation: "14 C.F.R. § 27.411"
title: "14"
number: "27.411"
heading: "Ground clearance: tail rotor guard."
url: "https://uscodex.org/cfr/14/27.411"
---

# §27.411. Ground clearance: tail rotor guard.

- (a) It must be impossible for the tail rotor to contact the landing surface during a normal landing.
- (b) If a tail rotor guard is required to show compliance with [paragraph (a)](#a) of this section—
  - (1) Suitable design loads must be established for the guard; and
  - (2) The guard and its supporting structure must be designed to withstand those loads.

## Notes

### 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.