In 1935, an unusual three-wheeled aircraft refueller was successfully introduced for servicing light aeroplanes at civil aerodromes and during World War II many later variants were manufactured for military use. Many continued in use at civil aerodromes and airports in Britain until the 1960s and 1970s with a few still in use (e.g. at North Weald and Leicester East) in the 1990s. At least 20 examples are known to survive worldwide with museums and private owners today.
