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
Ranks and insignia of Royal Danish Air Force Ranks and insignia of Royal Danish Air Force The Royal Danish Air Force ranks follows the NATO system of ranks and insignia, as does the rest of the Danish Defence. The ranks used are based around the Royal Air Force, with some minor changes. For example, 3 strips in the RAF is a OF-4, while only a OF-3 in Denmark. The highest officer's rank is OF-9 (General) which is reserved for the Chief of Defence (only when this seat is occupied by an Air Force officer). Similarly, OF-8 (Lieutenant general) is reserved for the "Vice Chief of Defence"). OF-7 (Major