Sec. 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:

------------------------------------------------------------------------
                                        Angle from right or
                                       left of longitudinal    Intensity
   Dihedral angle (light included)      axis, measured from    (candles)
                                            dead ahead
------------------------------------------------------------------------
L and R (red and green).............  0 to 10...          40
                                      10 to 20..          30
                                      20 to 110.           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]