Aviation Section Enlisted Patch Note: This item is currently in storage. This is an insignia patch worn by enlisted personnel of the Aviation Section of the U.S. Army Signal Corps during World War I. On May 24, 1918, President Woodrow Wilson transferred the Aviation Section from the Signal Corps to the newly established U.S. Army Air Service. Despite this organizational change, many enlisted personnel continued to wear this patch throughout the duration of the war. The U.S. Army Air Service was a forerunner of today's United States Air Force. Donated by Col. (Ret.) Robert F. Schirmer. Click here to return to the Featured World War I Artifacts index.