Squadron leader Squadron leader Squadron leader (Sqn Ldr in the RAF ; SQNLDR in the RAAF and RNZAF; formerly sometimes S/L in all services) is a commissioned rank in the Royal Air Force and the air forces of many countries which have historical British influence. It is also sometimes used as the English translation of an equivalent rank in countries which have a non-English air force-specific rank structure. An air force squadron leader ranks above flight lieutenant and immediately below wing commander and it is the most junior of the senior officer ranks. The air force rank of squadron leader has a
History of the Royal Canadian Air Force History of the Royal Canadian Air Force The history of the Royal Canadian Air Force begins in 1920, when the air force was created as the Canadian Air Force (CAF). In 1924 the CAF was renamed the Royal Canadian Air Force (RCAF) when it was granted the royal title by King George V. The RCAF existed as an independent service until 1968. Prior attempts at forming an air force for Canada were the Canadian Aviation Corps that was attached to the Canadian Expeditionary Force, and a two-squadron Canadian Air Force that was attached to the Royal Air Force. The modern