BLUE-WHITE Type III-V-VII

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CLASS 1-BW: PANELS HAVE WHITE MARKINGS ON A BLACK BACKGROUND.
WHEN ILLUMINATED, THE MARKINGS APPEAR “COOL WHITE” AND MEET THE
CHROMATICITY REQUIREMENTS OF USAF BLUE-FILTERED WHITE AS DEFINED
IN MIL-C-25050. CLASS 2-BW: PANELS ARE IDENTICAL TO CLASS 1-BW, EXCEPT
THEY HAVE A GREY BACKGROUND.