14 C.F.R. § 27.1397
Current through May 31, 2024
Each position light color must have the applicable International Commission on Illumination chromaticity coordinates as follows:
y is not greater than 0.335; and
z is not greater than 0.002.
x is not greater than 0.440-0.320y;
x is not greater than y-0.170; and
y is not less than 0.390-0.170x.
x is not less than 0.300 and not greater than 0.540;
y is not less than x-0.040" or yc-0.010, whichever is the smaller; and
y is not greater than x + 0.020 nor 0.636-0.400x;
Where yc is the y coordinate of the Planckian radiator for the value of x considered.
14 C.F.R. §27.1397