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
Bangladesh Air Force directorates headed by directors of group captain/air commodore rank. Under each director there are deputy directors (DD) headed by wing commanders and staff officers (SO) with rank of squadron leader and below. Trades of Bangladesh Air Force are: Branches of Bangladesh Air Force are: BAF Headquarters is located in Dhaka Cantonment. There are numerous bases set up all over the country. BAF Base Khademul Bashar Dhaka, BAF Base Bangabandhu Dhaka, BAF Base Zahurul Haque Chattogram and BAF Base Matiur Rahman Jashore are named after National as well as Air Force heroes. Other major bases are BAF Base Pahar Kanchanpur Tangail