This is the
Class A patch for the U.S. Army Air Corps. The Army Air Corps was the military
aviation part of the United States of America between 1926 through 1941. In
June of 1941, it was renamed the United States Army Air Forces. Then in 1947,
it was legally abolished by legislation and establishing the Department of the
Air Force. Class A patches are worn on the Army's Service Green uniform. The
patch's diameter is 2 1/2".