The Prop and Wings (propeller and wings) is a military insignia used to identify various aviation-related units in the United States military. The Prop and Wings originated as branch insignia of the United States Army Air Service in 1920, and remained such from 1926 to 1947 for the successor United States Army Air Corps. Approximately 90% of all officers serving in the United States Army Air Forces were commissioned in the Air Corps and wore the insignia. Versions of the insignia are still used by the United States Air Force and the United States Army Aviation Branch.
The original Prop and Wings insignia, with rounded wingtips, is currently most closely associated with the United States Air Force Academy. The Prop and Wings appears on many of the Academy's class crests and is part of the of the logo of the Academy's Association of Graduates. The Prop and Wings insignia is traditionally awarded to Academy cadets at the end of their grueling fourth-class (freshman) year, signifying that they have been "recognized" as upper class cadets. The standard insignia is chrome. However, a cadet is authorized to wear a gold Prop and Wings device if the cadet is a direct descendant of some in one or more designated classes of veterans. These classes originally included only veterans of the Army Air Corps, but were later expanded to include veterans of the Women Air Force Service Pilots, veterans or military members with at least 20 years of service, combat veterans, and service members who have died in the line of duty[citation needed]. Cadets wear the insignia on their flight caps.
More recently, the wear of the Prop and Wings has been extended to cadets in the Air Force Reserve Officer Training Corps (AFROTC). These cadets are awarded their Prop and Wings insignia after they have completed Field Training, typically after their sophomore (AS200) year.