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One of the earliest proponents of adapting land-based camouflage to military naval craft was William A. Mackay, whose "disruptive coloration" or "low visibility dazzle" system is pictured here. Later it was used to re-paint the troop transport <a href="https://openvalley.org/items/show/923"><em>US DeKalb</em></a> during the last year of World War I.<br /><br />Mackay was an artist who beginning in 1912 used his knowledge of optics and color to improve upon the standard method of painting warships gray—an important consideration given the success of German submarines. His theory was a modified pointillism that created gray through patterned application of red, green, and violet; unlike gray paint it would be perceived by human eyes in relation to differering "warm" or "cool" light conditions as a more adaptible gray. He incorporated elements of British "dazzle" patterns to eliminate sharp corners for the purposes of sighting.<br /><br />Even prior to the outbreak of the Great War Mackay created a camofleurs' school that inclulded the painter Thomas Casilear Cole, who eventually was assigned to the US Navy's Bureau of Construction and Repair during 1918.
Mackay, William A. (1876-1939)
Lindell T. Bates, <em>The Science of Low Visibility and Deception, as an Aid to the Defense of Vessels Against Attacks by Submarines</em> (Submarine Defense Assocation, 1918): following p. 32.<br /><br />Courtesy of <span class="metaText">U.S. Naval History and Heritage Command</span>
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Launched in 1904 as the <i>Prinz Eitel Friedrich</i> for a German cruise line, ship eventually was impounded by the U.S. during World War I, refitted as a troop transport ship, and re-launched as the <em>DeKalb </em>in 1917. After Armistice it was operated by an American cruise line between 1920-25 before getting scrapped in 1934.<br /><br />The photograph is of interest because it has been painted using the artist William A. Mackay's <a href="https://openvalley.org/items/show/924">"disruptive coloration" camouflage scheme.</a> It is shown here in the Philadelphia Navy Yard. New Deal Gallery artist Thomas Casilear Cole was one of Mackay's pupils and assigned to the US Navy's Bureau of Construction and Repair during 1918. Such measures were critical due to German submarine attacks, for example a June 1918 convoy that included the <em>DeKalb</em>.
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