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
Royal Canadian Air Force Women's Division rank structure similar to that of the Royal Air Force's WAAF. Ranks are listed with the most senior rank at the top and are compared with regular RCAF ranks. Royal Canadian Air Force Women's Division The Royal Canadian Air Force Women's Division was a non-combatant element of the Royal Canadian Air Force (RCAF) which was active during the Second World War. The Women's Division's original role was to replace male air force personnel so that they would be available for combat-related duties. First called the "Canadian Women's Auxiliary Air Force" (CWAAF), the name changed to "Royal Canadian Air Force Women's