11 Air Depot was established as a self accounting lodger unit of AFB Ysterplaat on 9 July 1940. Functional control was the responsibility of the Maintenance Group (later the Air Logistic Command). Its main function was to be a main holding depot for air equipment that is used by AFB Ysterplaat. 11AD was amalgamated with 2 Air Depot (2AD) at Air Force Base Ysterplaat in 1992.