TransPennine Express Class 185 at Doncaster in 2017
Refurbished standard-class interior
In service
March 2006 – present[1]
Manufacturer
Siemens Transportation Systems
Built at
Krefeld, Germany[2]
Family name
Desiro
Replaced
Class 158
Class 175
Mark 5A carriages[3]
Constructed
2005–2006[4]
Entered service
2006
Refurbished
2017
Number built
51[5]
Formation
3 cars per unit: DMOSB-MOSL-DMOCLW
Fleet numbers
185101–185151[5]
Capacity
169 seats (15 first, 154 standard) plus 12 tip-up
Owners
Eversholt Rail Group
Operators
TransPennine Express
Depots
Ardwick (Manchester)[1]
Leeman Road (York)[1]
Lines served
TransPennine North Route
TransPennine South Route
Specifications
Car body construction
Aluminium[6]
Train length
71.276 m (233 ft 10.1 in)
Car length
23.763 m (77 ft 11.6 in)
Width
2.673 m (8 ft 9.2 in)[6]
Height
3.710 m (12 ft 2.1 in)
Floor height
1.247 m (4 ft 1.1 in)
Doors
Double-leaf sliding plug (2 per side per car)
Wheelbase
Bogies: 2.600 m (8 ft 6.4 in)[7]
Maximum speed
100 mph (160 km/h)
Weight
Approx. 168.5 t (165.8 long tons; 185.7 short tons)
Axle load
18.5 t (18.2 long tons; 20.4 short tons) max.
Prime mover(s)
3 × Cummins QSK19-R[6](one per car)
Engine type
Inline-6 turbo-diesel[8]
Displacement
19 L (1,159 cu in) per engine[8]
Power output
1,683 kW (2,257 hp) at 2100 rpm
(561 kW (752 hp) per engine)[9]
Transmission
Voith T312bre (hydrokinetic,[10] one per car)
Acceleration
0.49 m/s2 (1.6 ft/s2)[11]
UIC classification
2′B′+B′2′+B′2′
Bogies
Siemens SGP SF5000
Minimum turning radius
120 m (393 ft 8 in)[7]
Braking system(s)
Electro-pneumatic (disc)plus hydraulic retarder
Safety system(s)
AWS
TPWS
Coupling system
Dellner 12[12]
Multiple working
Within class
Track gauge
1,435 mm (4 ft 8+1⁄2 in) standard gauge
Notes/references
Sourced from [13] except where otherwise noted
The British Rail Class 185 Desiro is a class of diesel-hydraulic multiple-unit (DHMU) passenger trains built by Siemens Transportation Systems in Germany for the train operating company First TransPennine Express. They are currently operated by TransPennine Express.[14]
A £260 million order for 51 three-car trains and associated maintenance depots was placed in 2003, and deliveries took place between 2006 and 2007.
^ abc"Class 185 – First TransPennine Express". Siemens AG. Archived from the original on 12 November 2013. Retrieved 25 June 2019.
^"TPE '185s' to get reliability upgrade". Rail Magazine. No. 940. Peterborough: Bauer Consumer Media. 22 September 2021. p. 20.
^Clinnick, Richard (October 2023). "TPE confirms Nova 3 withdrawal plan". Rail Express. No. 329. p. 8.
^Pritchard & Hall 2013, p. 243
^ abPritchard & Hall 2013, pp. 243–244
^ abc"TransPennine Express DMU starts commissioning trials". Railway Gazette International. London: Reed Business Information. 1 September 2005. Archived from the original on 16 November 2013. Retrieved 25 June 2012.
^ abFirst Class Bogies(PDF) (08/08 ed.). Graz: Siemens Transportation Systems. pp. 60–61, 67. Archived from the original (PDF) on 27 June 2013. Retrieved 12 November 2013.
^ abEvery Track - QSK19 for Rail Applications(PDF) (09/08 ed.). Daventry: Cummins Ltd. Bulletin 4087201. Archived from the original (PDF) on 2 December 2022. Retrieved 2 December 2022.
^Pritchard & Hall 2013, p. 242
^Rail Drives with Systematic Design(PDF). Heidenheim: Voith Turbo. September 2012. pp. 3, 5. Archived from the original (PDF) on 2 December 2022. Retrieved 2 December 2022.
^"Class 185 Diesel Multiple Unit" (PDF) (Data sheet). London: Eversholt Rail Group. Archived from the original (PDF) on 12 November 2013. Retrieved 12 November 2013.
^Marsden, C. J. (2007). "Class 185 'Desiro'". Traction Recognition. Hersham: Ian Allan Publishing. pp. 144–145. ISBN 978-0-7110-3277-4. OCLC 230804946. OL 16902750M.
^Desiro UK DMU Class 185 - Technical Information(PDF). Erlangen: Siemens Transportation Systems. 13 September 2004. Archived from the original (PDF) on 7 November 2007. Retrieved 2 December 2022.
^"Class 185". London: Eversholt Rail Group. Archived from the original on 27 May 2022. Retrieved 7 March 2022.
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