Double-leaf sliding plug, each 1.300 m (4 ft 3.2 in) wide (total 6 per side)
Wheel diameter
Powered: 870 mm (34 in)
Unpowered: 760 mm (30 in)
Wheelbase
Bogies: 2.700 m (8 ft 10.3 in)
Maximum speed
90 mph (145 km/h)
Weight
154.3 tonnes (151.9 long tons; 170.1 short tons) (4-car set)[5]
Traction system
IGBT
Prime mover(s)
4 × Deutz 16-litre V8 turbo-diesel
Power output
1,500 kW (2,000 hp) at wheel
Tractive effort
Starting: 160 kN (36,000 lbf)
Acceleration
0.9 m/s2 (2.0 mph/s)
UIC classification
Bo′2′2′2′2′Bo′
Safety system(s)
AWS
TPWS
(plus provision for ETCS)
Multiple working
Within class (max. 3 units)
Track gauge
4 ft 8+1⁄2 in (1,435 mm) standard gauge
Notes/references
Sourced from [6] unless otherwise noted.
The British Rail Class 231[7] is a class of eleven diesel-electric multiple units of the FLIRT family, which have been built for Transport for Wales by Swiss rolling stock manufacturer Stadler Rail. The first units entered service on 18 January 2023.[1]
^ abLee Waters MS [@Amanwy] (18 January 2023). "All aboard!" (Tweet) – via Twitter.
^Fletcher, Steve (27 June 2022). "The Railways (Interoperability) Regulations 2011, as amended – Stadler Bussnang AG, Class 231/0" (PDF). Letter to Anandarajah Mariadas (Stadler Bussnang AG). London: Office of Rail and Road. Archived (PDF) from the original on 1 October 2022. Retrieved 1 October 2022.
^"Time to take stock as the 'bubble' bursts…". Rail Magazine. No. 989. 9 August 2023. pp. 42–47.
^Bi-Mode Multiple Unit - FLIRT - Greater Anglia, UK(PDF). Bussnang: Stadler Rail Group. 1 August 2019. FEABMU0819e. Archived (PDF) from the original on 29 October 2023. Retrieved 1 August 2019.
^"Class 231" (PDF). Transport for Wales. Retrieved 11 December 2022.
^FLIRT Diesel-Electric Multiple Unit - Transport for Wales(PDF). Bussnang: Stadler Rail Group. 1 April 2023. FWBDMU0423e. Archived (PDF) from the original on 29 October 2023. Retrieved 3 December 2020.
^Transport for Wales Rail [@tfwrail] (2 December 2019). "The diesel-electric Metro trains that will run on the Maesteg, Ebbw Vale and Cardiff-Cheltenham lines from 2022 will be Class 231" (Tweet) – via Twitter.
Cite error: There are <ref group=note> tags on this page, but the references will not show without a {{reflist|group=note}} template (see the help page).
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