14 CFR 27.1393 - Minimum intensities in any vertical plane of forward and rear position lights.

Regulations last checked for updates: Feb 10, 2026

Title 14 - Aeronautics and Space last revised: Dec 19, 2026

§ 27.1393 - Minimum intensities in any vertical plane of forward and rear position lights.

Each position light intensity must equal or exceed the applicable values in the following table:

Angle above or below the horizontal plane	Intensity, l
0°	1.00
0° to 5°	0.90
5° to 10°	0.80
10° to 15°	0.70
15° to 20°	0.50
20° to 30°	0.30
30° to 40°	0.10
40° to 90°	0.05

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

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

cite as: 14 CFR 27.1393