British United Traction
{{Short description|British railway equipment and trolleybus manufacturer}}
{{Use dmy dates|date=January 2017}}
{{Use British English|date=January 2017}}
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|foundation = 1946
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|defunct = 1964
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|industry = Bus manufacturing
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British United Traction (BUT) was a manufacturer of railway equipment and trolleybuses. It was established in 1946 as a joint venture between AEC and Leyland.
History
British United Traction was established in 1946 when AEC and Leyland amalgamated their trolleybus interests. Neither had produced trolleybuses since the early years of World War II. With both forecasting that demand would return to pre-war levels as networks began to close, a joint venture was formed. The new company was organised so that AEC would design and produce vehicles for the UK market while Leyland looked after export markets, although there were some exceptions to this. The only noticeable difference between the manufacturers' output was the wheels.{{cite book|last=Jack|first=Doug|title=The Leyland Bus|year=1977|publisher=The Transport Publishing Company|location=Glossop|isbn=090383913X|pages=295-299}}{{cite book|title=Companion to Road Passenger Transport History|year=2013|publisher=Roads & Road Transport History Association|location=Walsall|isbn=9780955287633|page=102}}{{cite book|last=Lockwood|first=Stephen|title=A-Z of British Trolleybuses|year=2017|publisher=Crowood Press|location=Marlborough|isbn=9781785002885}}
Initially vehicles were produced at Leyland's Ham, London factory, with the first vehicles completed in 1947 for Johannesburg. After the factory closed 1948, production moved to AEC's Southall and Leyland's Leyland, Lancashire factories. Following AEC's acquisition of Crossley Motors, AEC transferred its production to the latter's Stockport factory. Trolleybus production wound down in the late 1950s, however a final batch for Wellington was built at Scammell's, Watford factory in 1964.
Trolleybuses
Diesel engines for railways
{{unreferenced section|date=July 2018}}
British United Traction was a major supplier of diesel engines for British Rail's first-generation diesel multiple units. These engines were built in {{convert|125|hp|kW|abbr=on}}, {{convert|150|hp|kW|abbr=on}} and {{convert|230|hp|kW|abbr=on}} versions and were branded AEC, Leyland or Leyland-Albion.
A {{convert|275|hp|kW|abbr=on}} version was supplied to the Ulster Transport Authority for its UTA MPD class railcar.
References
{{Reflist}}
External links
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{{Automotive industry in the United Kingdom}}
{{British United Traction}}
Category:Associated Equipment Company
Category:Defunct bus manufacturers of the United Kingdom
Category:Electric vehicle manufacturers of the United Kingdom
Category:Trolleybus manufacturers
Category:Vehicle manufacturing companies established in 1946