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Roundel of the United States Army Air Corps used from 1926 to 1941. When the Air Corps name was changed to the United States Army Air Force which retained the roundel until 1942 when complaints came that the red dot in the centre of the star could be confused by anti-aircraft personnel or other pilots for Japanese aircraft (their roundel was a red circle).
U.S. Army Signal Corps Curtiss JN-3 biplanes with red star insignia, 1915 Nieuport 28 with the World War 1 era American roundels. The first military aviation insignias of the United States include a star used by the US Army Signal Corps Aviation Section, seen during the Pancho Villa punitive expedition, just over a year before American involvement in World War I began.
Until the 1960s, the bulk of its business was conducted via mail. In the late 1960s, USAA began a transition from mail to phone-based sales and service. It launched a toll-free number in 1978, and Internet sales and service in June 1999 via its website. [14] USAA offered restricted membership to civilians between September 2009 and August 2013.
English: Roundel used by US armed forces from 6 May 1942 to 28 June 1943 when white bars and a red outline were added as the result of studies which showed that shape was more important than color from a distance.
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English: PDF version of the US History Wikibook. This file was created with MediaWiki to LaTeX . The LaTeX source code is attached to the PDF file (see imprint).
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