Bombardier Aventra

The Bombardier Aventra is a British family of electric multiple unit (EMU) passenger trains designed by Bombardier Transportation, as a successor to the Bombardier Electrostar.

Bombardier Aventra
Class 345 for Elizabeth Line services.
ManufacturerBombardier Transportation
Built atDerby Litchurch Lane Works
ReplacedClass 172
Class 315
Class 317
Class 319
Class 321
Class 323
Class 350
Class 360
Class 379
Class 387
Class 455
Class 456
Class 458
Class 707
Constructed2015 – present
PredecessorBombardier Electrostar
Operator(s)
Depot(s)
Specifications
Weight30–35 tonnes (30–34 long tons; 33–39 short tons) per car[1]
Electric system(s)25 kV AC (OHLE),
750 V DC (Third rail)
Current collection methodPantograph, Contact shoe
BogiesFlexx-Eco[2]
Track gauge1,435 mm (4 ft 8 1⁄2 in) standard gauge

Description

The train has been designed to be lighter and more efficient, with increased reliability.[3] It will have a lightweight structure made of welded assemblies bolted together into a carriage (CKD philosophy), wide gangways and doors to shorten boarding times in stations, and ERTMS.[2] The design incorporates FlexxEco bogies which have been used in service on Voyagers and newer Turbostars.[4] The gangway is designed to allow maximum use of the interior space and ease of movement throughout the train.[5][6]

Orders

As of December 2017, 2,618 vehicles have been ordered for six operators:

Crossrail

The first order for Bombardier Aventras covered 65 Class 345 nine-car EMUs (with an option for 17 more) for the London Crossrail project. These will be operated by Crossrail concession holder MTR Crossrail.[7] In July 2017, it was announced that the order would be increased to 70 trains;[8] the contract for the additional trains was signed in March 2018.[9]

London Overground

London Overground has ordered 54 four-car trains (Class 710), with an option remaining for 15 more, similar to those being used for Crossrail. They will replace Class 315, 317 and 172 on Lea Valley and Gospel Oak lines and will be operated by London Overground concession holder Arriva Rail London.[10]

Greater Anglia

In August 2016, Greater Anglia was awarded the new East Anglia franchise, and announced an order with Bombardier for Class 720 units, formed of 22 ten-car trains and 89 five-car trains (665 carriages) as part of a full fleet replacement programme.[11]

South Western Railway

On 20 June 2017, Bombardier was awarded a contract to build 750 cars for South Western Railway (SWR). The Class 701 units will be formed into 30 five-car and 60 ten-car sets and replace the entirety of the 455, 456, 458 and 707 suburban fleet currently used by SWR.[12][13]

West Midlands Trains

On 17 October 2017, Bombardier was selected to provide a total of 81 Class 730 EMU vehicles (333 carriages) for West Midlands Trains. These will be formed into three separate types; 36 three-car high capacity 'Metro' units, 29 five-car units for outer suburban services, and 16 five-car units for London-Birmingham services.[14]

c2c

In December 2017, c2c ordered six 10-car Aventra units, to come into service in summer 2021.[15][16] These will replace six 4-car Class 387 units leased from 2017.[17]

Bombardier Aventra variants
ClassOperatorIntroducedNumberPowerCarriagesCarriage Length (m)Door configurationEnd gangwaysImage
Class 345TfL Rail201770AC electric9
(7 from 2017)		24Plug, 6 sets of doors per carriageNo
Class 701 South Western Railway202030DC electric5 20Plug, 4 sets of doors per carriage
60 10
Class 710 London Overground201931AC electric4 20
18 Dual voltage
6Dual voltage 5

Class 720[18] c2c2021 6AC electric1024
Greater Anglia202089AC electric5[19]
2210[19]

Class 730 West Midlands Trains202036AC electric3 24Yes
202129 5
16 5

Bombardier has also proposed a bi-mode version of the Aventra to potentially replace the Bombardier Turbostar and Voyager platforms, intended to be capable of speeds up to 125 miles per hour (200 km/h).[20]

References
  1. "Weight-loss drives step-change". The Rail Engineer (October 2009). Archived from the original on 22 February 2013.
  2. Bednall, Joe (June 2010). "A low impact commuter train". Rail Professional (159). p. 27.
  3. "Aventra – Proven Innovation". The Rail Engineer (60): 17–19. October 2009.
  4. "Bombardier's Aventra – A new era in train performance". www.rail.co. 21 March 2011. Archived from the original on 20 March 2012.
  5. "The customer is king". The Rail Engineer (65). March 2010. pp. 28–29.
  6. Bedminster, Paula (December 2009). "The lightweight Aventra" (PDF). Rail Professional (153). pp. 8–9. Archived from the original (PDF) on 6 March 2012.
  7. "Bombardier wins Crossrail train contract". Railway Gazette International. London. 6 February 2014.
  8. "TfL to order more Elizabeth line trains". Global Rail News. 13 July 2017. Retrieved 15 September 2018.
  9. "More Crossrail trains ordered". Metro Report International. 27 March 2018. Archived from the original on 16 September 2018. Retrieved 15 September 2018.
  10. Sadler, Katie (3 July 2015). "Bombardier to supply and maintain 180 AVENTRA vehicles for London Overground". European Railway Review. Retrieved 15 September 2015.
  11. Barrow, Keith (10 August 2016). "Abellio clinches East Anglia franchise". International Railway Journal. Retrieved 10 August 2016.
  12. Johnson, Robin (20 June 2017). "Derby's Bombardier lands South West Trains order worth almost £900 million". Derby Telegraph. Retrieved 20 June 2017.
  13. FirstGroup and MTR order 750 EMU cars for South Western franchise International Railway Journal 20 June 2017
  14. "Bombardier and CAF win West Midlands train contracts". Railway Gazette. 17 October 2017. Retrieved 17 October 2017.
  15. "Bombardier to supply Aventra EMUs to c2c". Railway Gazette. 14 December 2017. Retrieved 14 December 2017.
  16. Briginshaw, David (14 December 2017). "Britain's c2c franchise orders Aventra EMUs". International Railway Journal. Retrieved 14 December 2017.
  17. "New trains boost to deal with 'unprecedented' demand". Railnews. 13 April 2016. Retrieved 14 December 2017.
  18. https://uk.linkedin.com/in/james-o-sullivan-05ba857b
  19. "New trains as Abellio scoops East Anglia franchise". www.railmagazine.com.
  20. "Bombardier bi-mode Aventra to feature battery power". Rail Magazine. 29 March 2018. Retrieved 5 April 2018.
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