Commander Air Force's mid-rank officers' ranks are modelled on those of the Royal Navy, the term wing commander is used as a rank, and this is the equivalent of a lieutenant colonel in the army or a commander in the navy. The rank of wing commander is above that of squadron leader and below that of group captain. In the former Royal Naval Air Service, which was merged with the Royal Flying Corps to form the Royal Air Force in 1918, the pilots held appointments as well as their normal ranks in the Royal Navy, and they wore insignia appropriate to
Air Force Training Group RAAF Air Force Training Group RAAF Air Force Training Group is the Royal Australian Air Force (RAAF) group responsible for training personnel. It is headquartered at RAAF Williams, Victoria. The group was established as Training Command in 1953. It formed part of Support Command between from 1959 to 1990, when it was re-established as Training Command. In July 2006, Training Command was re-formed as Air Force Training Group under Air Command. Air Force Training Group units are organised into Air Training Wing, Ground Training Wing, Reserve Training Wing, and RAAF College. Air Force Training Group was established as Training Command at