British Rail Class 175

British Rail Class 175
Coradia 1000
Transport for Wales Rail Class 175 at Cardiff Central in 2023
Refurbished Transport for Wales Rail interior
In service20 June 2000 – 17 October 2023[1] (previous operators)
Planned for May 2025 onwards (Great Western Railway)[2]
ManufacturerAlstom
Built atWashwood Heath, Birmingham[3]
Family nameCoradia 1000
Replaced
Constructed1999–2001
Refurbished2019–2022[4][5]
Number built27
Successor
[1][6]
Formation
  • 2 cars per 175/0 unit:
    DMSL-DMSL
  • 3 cars per 175/1 unit:
    DMSL-MSL-DMSL
Fleet numbers
  • 175/0: 175001–175011
  • 175/1: 175101–175116
Capacity136 seats per 2-car unit
OwnersAngel Trains
Operators
Depots
[7]
Specifications
Car body constructionSteel
Car length
  • DMSL vehicles: 23.71 m (77 ft 9 in)
  • MS vehicles: 23.03 m (75 ft 7 in)
Width2.73 m (8 ft 11 in)
DoorsSingle-leaf sliding plug (2 per side per car)
Maximum speed100 mph (160 km/h)
Weight
  • DMSL vehs.: 56.51 t (55.62 long tons; 62.29 short tons)
  • MSL vehs.: 55.80 t (54.92 long tons; 61.51 short tons)
  • DMSL vehs.: 57.50 t (56.59 long tons; 63.38 short tons)
Axle loadRoute Availability 1
Prime mover(s)2 or 3 × Cummins N14E-R (one per vehicle)
Engine typeInline-6 4-stroke turbo-diesel[8]
Displacement14 L (855 cu in) per engine[8]
Power output340 kW (450 hp) per engine
TransmissionVoith T 211 re.3 (hydrokinetic, one per vehicle)
Braking system(s)Electro-pneumatic[a]
Safety system(s)
Coupling systemScharfenberg Type 330[9]
Multiple workingWithin class, and with Class 180
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Notes/references
Sourced from [10] except where otherwise noted.

The British Rail Class 175[11] Coradia 1000 is a type of diesel-hydraulic multiple unit (DHMU) passenger train from the Alstom Coradia 1000 family.

The fleet of 27 sets was ordered from the French train manufacturer Alstom during July 1997 and were constructed between 1999 and 2001 at Washwood Heath, Birmingham. Early plans for some of the fleet to be capable of 125 mph (200 km/h) were in place but subsequently abandoned. Driver training and extensive testing of the new fleet was performed at the Old Dalby Test Track from November 1999. The first Class 175 entered revenue service with the train operating company First North Western on 20 June 2000. Ownership of the fleet is held by Angel Trains, who has leased the fleet to various train operators.

The first operator of the Class 175, North Western Trains (later known as First North Western), did not operate the fleet for long before Wales & Borders was created and inherited it. During December 2003, the new franchisee Arriva Trains Wales took over the Class 175s, by which point early reliability problems had been mostly resolved. First TransPennine Express also briefly operated several. In February 2018, the entire Class 175 fleet was temporarily withdrawn from service for safety checks. During October 2018, the fleet was transferred to the Transport for Wales Rail Services (KeolisAmey Wales) and then to the government-owned Transport for Wales Rail during 2021.

  1. ^ a b Cite error: The named reference Rail995 was invoked but never defined (see the help page).
  2. ^ "Great Western Railway's acquisition of '175s' confirmed with 2025 introduction planned". News. Rail Magazine. 4 November 2024.
  3. ^ "Exciting new era of high speed travel" (Press release). First North Western. 28 November 1999. Archived from the original on 28 November 1999.
  4. ^ "Alstom completes first Class 175 DMU refurbishment". Railway Gazette International. Archived from the original on 9 June 2020. Retrieved 25 January 2022.
  5. ^ Smith, Roger (25 January 2022). "Transport for Wales celebrates completion of Class 175 refurbishment programme". RailAdvent. Archived from the original on 25 January 2022. Retrieved 25 January 2022.
  6. ^ Cite error: The named reference TRUK184 was invoked but never defined (see the help page).
  7. ^ "Class 175s withdrawn for safety checks after fires". Rail Magazine. No. 797. 22 March 2023. p. 13.
  8. ^ a b "Engines: N14". Columbus, Indiana: Cummins Inc. Retrieved 18 December 2022.
  9. ^ System Data for Mechanical and Electrical Coupling of Rail Vehicles in support of GM/RT2190 (PDF). London: Rail Safety and Standards Board. 22 June 2011. p. 4. SD001. Archived from the original (PDF) on 1 April 2012. Retrieved 22 November 2022.
  10. ^ "Class 175 - Arriva Trains Wales". London: Angel Trains. Archived from the original on 4 March 2016. Retrieved 25 May 2021.
  11. ^ Marsden 2011, p. 154-155


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