United States Navy
Ships - 2
Supplement to second revision of Ships-2
March 1943
Measure 23: Light Gray
System
An ANTISUBMARINE measure applicable to
any vessel
CAUTION.
Ships painted with this measure have
high visibility from high angle aircraft observation.
EFFECTIVENESS.
Ships painted with this measure are not
visible as far as darker ships when seen against the sky background. At
night and twilight and on cloudy days, a white ship would even be
better. However, on clear days a white ship seen in strong sunlight can
be seen much farther than a light gray ship of this measure, which reflects
less light than white reflects. That is the reason this shade has been
chosen instead of white. Once sighted, ships painted in a uniform light
color reveal their identity more quickly than dark ships or light pattern
ships. Therefore this measure is not as effective as the light pattern
measure which confuses the ship's identity.
COLORS EMPLOYED.
Name |
Formula |
Mixture |
Reflectance
(Percent) |
Deck Blue |
20-B |
Issued Ready Mixed |
5 |
Light Gray |
5-L |
1 pint 5-TM to 5 Gallons of white (5-U) |
35 |
White |
5-U |
Issued Ready Mixed |
75 |
METHOD OF APPLICATION
-
Paint decks and other horizontal
surfaces; Deck Blue 20-B.
-
Paint exposed undersides of decks;
White (5-U).
-
Paint exposed vertical surfaces;
Light Gray (5-L).
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