Last revised July 2, 1999
The P-40A designation was skipped in the initial designation
assignments. However, it was applied retroactively to P-40 Ser No
40-326 when it was converted to a camera-carrying photographic
reconnaissance model at Bolling Field in March of 1942.
War Planes of the Second World War, Fighters, Volume Four, William Green,
The American Fighter, Enzo Anguluci and Peter Bowers, Orion Books, 1987.
United States Military Aircraft since 1909, Gordon Swanborough and Peter
M. Bowers, Smithsonian Institution Press, 1989.
Curtiss Aircraft, 1907-1947, Peter M. Bowers, Naval Institute Press, 1979.
The Curtiss P-40 Tomahawk, Ray Wagner, Aircraft in Profile, Volume 2,