LOW VISIBILITY CAMOUFLAGE OF SUBMARINES TESTS AT SEA, OF JUNE AND JULY 1937
NAVAL RESEARCH LAB WASHINGTON DC
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The experiments of Submarine Squadron Four in deep water off Pearl Harbor showed that a dark blue color was the least visible to aircraft observers. Portions of a submarine painted with the color and submerged to slightly below periscope depth were invisible to overhead observers. Further experiments with the dark blue color on submarines in other areas of the sea are recommended.
- Optical Countermeasures
- Undersea and Antisubmarine Warfare