London City Airport Albert and King George V docks to the north and south respectively, also means that there are no covered maintenance facilities for aircraft. With space limited in the London Docklands area, and comparatively low passenger volumes, London City Airport is small compared with several other airports serving London, such as Heathrow, Gatwick, Stansted and Luton. The airport has a single, two-storey passenger terminal building. The ground floor contains the check-in desks and some service facilities as well as a staircase leading to the security control on the upper level, after which the airside waiting area and several more shops can
London Underground S Stock (ex-Metropolitan Railway) used with two 1925-built prototype driving motors. In 1925, two driving motor cars were built as prototypes for what would later become the T stock. In the London Passenger Transport Board numbering scheme, they became 2598 and 2599. After the trailer cars were withdrawn from service in the 1940s, the two driving motor cars remained in service on the East London Line, being used with a 1923-built control trailer. These three cars were withdrawn in 1950. London Underground S Stock (ex-Metropolitan Railway) S stock is the designation given to one train of eight cars by London Underground in the 1930s.