The Flight Surgeon Badge is a military badge of the United States Armed Forces which has existed to designate Flight Surgeons since the Second World War. The Flight Surgeon Badge is worn by those members of the military who have completed the individual service requirements for award of the badge. The original Flight Surgeon Badges were awarded by both the Army and Navy during World War II. After WW II, when the USAF became a separate service, they retained the Army Air Force badge, but redesigned it with a smaller caduceus over the central shield (the present pattern). Concurrently, the Army badge was redesigned to the present pattern (along with all other Army Aviation badges). The Naval Flight Surgeon insignia has gone through several design iterations from the pre-World War II period, to during World War II, to the postwar period and present day. There is no separate Marine Corps Fight Surgeon insignia, as all medical personnel assigned to or supporting Marine Corps units are Navy personnel, and will thus be awarded and wear Navy insignia. The Coast Guard Flight Surgeon Badge is the same pattern as the USCG Aviator badge, but with a caduceus superimposed over the central shield. Unlike USN and USN medical support of USMC, USCG Flight Surgeons are commissioned corps officers of the U.S. Public Health Service. To be awarded the Army Basic Flight Surgeon Badge, a service member must be a commissioned officer who is either a physician, Physician Assistant, or ANP (the latter two as of 2011 per Army Regulation 600-8-22) and successfully complete the Army Flight Surgeon Primary Course (AFSPC) at Fort Rucker, Alabama. The AFSPC is a six-week course that includes topics in aviation physiology, Army aviation and aviation medicine regulations, accident investigation, military aviation operations, and aircraft orientations; for several years in the 1980s flight surgeon candidates received actual flight training up to, and including, solo flight in the TH-55 helicopter. A physician who has completed the AFSPC may later elect to apply for the Army Residency in Aerospace Medicine, although some highly qualified fourth year medical students may be selected to enter the program upon graduation. The Naval Flight Surgeon is conducted at the Naval Aerospace Medical Institute at NAS Pensacola, Florida. Its curriculum is similar to the Army program, but is 24 weeks in length and includes 10 weeks of flight indoctrination training in the T-6 Texan II, T-45