Some later pre-war vehicles made use of modern monocoque construction techniques to produce chassisless bodies, where the mechanical and electrical parts, including the traction motors, are affixed to the bodywork and not to a separate chassis.

In July 1990, London Regional Transport introduced an express version of bus route 207 as route 607 between Uxbridge and Shepherd's Bush, mirroring the former trolleybus that carried the same number. Some London trolleybuses are now preserved in the United Kingdom by the East Anglia Transport Museum, the London Transport Museum, and The Trolleybus Museum at Sandtoft. [11] One of the 1948 vehicles has also been repatriated from Spain.a b Joyce, J.; King, J. S.; and Newman, A. G. (1986). British Trolleybus Systems, pp. 84–95, 159. London: Ian Allan Publishing. ISBN 0-7110-1647-X.

a b c Murray, Alan (2000). World Trolleybus Encyclopaedia, p. 73. Yateley, Hampshire, UK: Trolleybooks. ISBN 0-904235-18-1. A handful of vehicles were destroyed during World War II, whilst a couple of dozen others were rebuilt after suffering damage from enemy action—at least one trolleybus was damaged and rebuilt twice. Zebedee, John (30 November 2010). "A List of Preserved Trolleybuses in the UK". British Trolleybus Society . Retrieved 16 March 2011. Tandem steering, single rear axle (dual wheels) drive; built as a Leyland demonstrator, February 1939, acquired September 1939Trolleybuses served the London Passenger Transport Area from 1931 until 1962. For much of its existence, the London system was the largest in the world. It peaked at 68 routes, with a maximum fleet of 1,811 trolleybuses. [1] [2] History [ edit ] Two west-bound trolleybuses on Romford Road, Ilford, in July 1955 The last trolleybus on 8 May 1962 Taylor, Hugh (1994). London Trolleybus Routes. Middlesex: Capital Transport Publishing. ISBN 978-1-85414-155-2. In 1933, LUT was absorbed into the London Passenger Transport Board (LPTB) along with other tram operators, the largest being London County Council (LCC). The LPTB decided to replace all trams with trolleybuses. This started in October 1935, with two more former LUT routes, and continued in stages until June 1940, when World War II caused the suspension of the programme. By then, nearly all the trams North of the River Thames had been replaced, however there were still some 1,100 trams servicing South London. [4] In 1946, a change in policy meant that all remaining tramlines would be replaced by diesel buses. As trolleybuses were bigger than diesel buses (70 seats compared to 56), this meant that more diesel buses were required. It was hoped, however, that this would result in fewer uncollected fares on the smaller vehicles. In 1954, it was announced that all trolleybuses were to be replaced by diesel buses, with the exception of the post-war vehicles, which would be retained until about 1970 and run over the original LUT routes. Conversion began in 1959, using AEC Regent III RT buses for the first three stages, and new AEC Routemasters for the remainder. [5] [6]