GroundRules
14 CFR 27.1395: Maximum intensities in overlapping beams 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
No position light intensity may exceed the applicable values in the following table, except as provided in § 27.1389(b)(3).
Overlaps Maximum Intensity
Area A (candles) Area B (candles)
Green in dihedral angle L 10 1
Red in dihedral angle R 10 1
Green in dihedral angle A 5 1
Red in dihedral angle A 5 1
Rear white in dihedral angle L 5 1
Rear white in dihedral angle R 5 1
Where—
(a) Area A includes all directions in the adjacent dihedral angle that pass through the light source and intersect the common boundary plane at more than 10 degrees but less than 20 degrees, and
(b) Area B includes all directions in the adjacent dihedral angle that pass through the light source and intersect the common boundary plane at more than 20 degrees.
Collected 2026-08-27T02:24:20Z. Source file · JSON