14 Aeronautics and Space 1 1999-01-01 1999-01-01 false Minimum intensities in the horizontal plane of position lights. 23.1391 Section 23.1391 AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES Sfar No. 41 Equipment Lights
§ 23.1391 Minimum intensities in the horizontal plane of position lights.

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 (red and green) 0° to 10°
  • 10° to 20°
  • 20° to 110°
    •  40
  • 30
  • 5
    •      A (rear white) 110° to 180° 20     [Doc. No. 4080, 29 FR 17955, Dec. 18, 1964, as amended by Amdt. 23-43, 58 FR 18977, Apr. 9, 1993]