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British Rail 18000
Power type Gas Turbine-electric
Builder Brown, Boveri & Cie and
Swiss Locomotive and Machine Works
Order number GWR Lot 372
Serial number BBC: 4559
SLM: 3977
Build date 1949
UIC classification (A1A)(A1A)
Wheel diameter Driving: 4 ft 0+14 in (1,226 mm)
Idling: 3 ft 2 in (965 mm)
Locomotive weight 115.18 long tons (117.03 t)
Prime mover Gas Turbine
Traction motors Four
Transmission DC generator
DC traction motors
Top speed 90 mph (145 km/h)
Power output 2,500 hp (1,900 kW)
Tractive effort 31,500 lbf (140,000 N)
Train heating Steam generator
Career British Railways
Power class BR: 4
Nicknames Kerosene Castle

British Rail 18000 was a prototype mainline gas turbine-electric locomotive built for British Railways in 1949. It was built by Brown, Boveri & Cie. It was ordered by the Great Western Railway in 1940, but construction was delayed by World War II. It spent its working life on the Western Region of British Railways, operating express passenger services from London Paddington station.


The locomotive is preserved at Didcot Railway Centre.

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