---
kind: "section"
citation: "14 C.F.R. § 27.1399"
title: "14"
number: "27.1399"
heading: "Riding light."
url: "https://uscodex.org/cfr/14/27.1399"
---

# §27.1399. Riding light.

- (a) Each riding light required for water operation must be installed so that it can—
  - (1) Show a white light for at least two nautical miles at night under clear atmospheric conditions; and
  - (2) **Show a maximum practicable unbroken light with the rotorcraft on the water.**
- (b) Externally hung lights may be used.

## Notes

### Amendments

[Doc. No. 5074, 29 FR 15695, Nov. 24, 1964, as amended by Amdt. 27-2, 33 FR 964, Jan. 26, 1968]

### 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. 27-2, 33 FR 964, Jan. 26, 1968]