GroundRules
14 CFR 27.1391: Minimum intensities in the horizontal plane of forward and rear position lights.
Where this section sits in the code
- Title 14—Aeronautics and Space
- CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
- SUBCHAPTER C—AIRCRAFT
- PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT
- Subpart F—Equipment
Each position light intensity must equal or exceed the applicable values in the following table:
Dihedral angle (light included) Angle from right or left of longitudinal axis, measured from dead ahead Intensity (candles)
L and R (forward red and green) 10° to 10° 10° to 20° 20° to 110° 40 30 5
A (rear white) 110° to 180° 20
Collected 2026-08-27T02:24:20Z. Source file · JSON