British Rail Class 756

British Rail Class 756
FLIRT
White and red train on display
Class 756 unit at InnoTrans 2022, Berlin
In servicePlanned for October 2024[1]
ManufacturerStadler Rail
AssemblyStadler Bussnang AG
Built atBussnang, Switzerland[2]
Family nameFLIRT
Replaced
Constructed2021–2023[3]
Number under construction24
(7 × 3-car, 17 × 4-car)
Formation
Fleet numbers
  • 756/0: 756001–756007
  • 756/1: 756101–756117[3]
Capacity
  • 3-car: 118 seats,
    plus 24 tip-up & 148 standees
  • 4-car: 158 seats,
    plus 32 tip-up & 204 standees
OwnersSMBC Leasing[4]
OperatorsTransport for Wales Rail
DepotsCanton (Cardiff)
Specifications
Car body constructionAluminium
Train length
  • 3-car: 65.0 m (213 ft 3 in)
  • 4-car: 80.7 m (264 ft 9 in)
Width
  • Passenger vehicles:
    2.720 m (8 ft 11.1 in)
  • Power Pack:
    2.822 m (9 ft 3.1 in)[5]
Height3.915 m (12 ft 10.1 in)
Floor height960 mm (3 ft 2 in)
DoorsDouble-leaf sliding plug, each 1.300 m (4 ft 3.2 in) wide
(total 5 per side per 3-car, 7 per side per 4-car)
Wheel diameter
  • Powered: 870 mm (34 in)
  • Unpowered: 760 mm (30 in)
WheelbaseBogies: 2.700 m (8 ft 10.3 in)
Maximum speed75 mph (121 km/h)
Traction systemIGBT
Power output
  • On AC power:
  • 2,600 kW (3,500 hp)
  • On battery power:
  • 1,300 kW (1,700 hp)
  • On diesel power:
  • 480 kW (640 hp)
Tractive effortMaximum starting:
200 kN (45,000 lbf)
AccelerationMaximum starting:
1.1 m/s2 (2.5 mph/s)
Electric system(s)25 kV 50 Hz AC overhead
Current collector(s)Pantograph
UIC classification
  • 3-car: Bo′2′2′2′Bo′
  • 4-car: Bo′2′2′2′2′Bo′
Safety system(s)
Multiple workingWithin class (max. 2 units)
Track gauge4 ft 8+1⁄2 in (1,435 mm) standard gauge
Notes/references
Sourced from [6] unless otherwise noted.

The British Rail Class 756 FLIRT[7] is a class of tri-mode multiple units being built for Transport for Wales Rail by Swiss rolling stock manufacturer Stadler Rail. They are closely related to the Class 755 bi-mode units delivered by Stadler to Greater Anglia between 2018 and 2020, which can be powered either by overhead electric lines or on-board diesel generators. The Class 756 units will also carry batteries as an additional source of traction power.[8]

A total of 24 units are to be built, split between 7 three-car units and 17 four-car units.[6]

History

The Wales & Borders rail franchise, awarded to KeolisAmey Wales with effect from 14 October 2018, included a commitment requiring that the operator oversee a full fleet replacement during the franchise period.[9] As part of this process, KeolisAmey placed an order with Stadler in February 2019 for the 24 FLIRT tri-mode units that came to be designated Class 756. The tri-mode capabilities are intended to facilitate operations over lines that have only been partially electrified. Production of the fleet was underway by mid-2021,[2] and TfW have stated that entry into service is planned for October 2024.[1]

Operators

Transport for Wales

When built, Transport for Wales Rail Class 756 units will operate services on the Rhymney line and Vale of Glamorgan Line.

Technical details

Class 756 units have three or four passenger vehicles, along with a separate "Power Pack" vehicle near the centre of the unit that contains a diesel generator set and three battery modules.[10] The diesel generator produces 480 kW (640 hp), while the batteries are capable of supplying up to 1,300 kW (1,700 hp).[6] All vehicles are linked by unpowered Jacobs bogies, while the outermost bogie at each end of each unit carries the traction motors.[6]

Fleet details

Subclass Operator Qty. Year built Passenger cars Unit nos.[3]
756/0 Transport for Wales Rail 7 2021–2023 3 756001–756007
756/1 17 4 756101–756117

Illustration

Illustration of a four-car Class 756 unit (based on concept art)

Notes

  1. ^ a b The Power Pack is technically a fourth or fifth vehicle in these units, but as it contains no passenger accommodation it is excluded from the count of passenger cars.

References

Wikimedia Commons has media related to British Rail Class 756.
  1. ^ a b "Key performance indicators for customers". Transport for Wales. Retrieved 2 October 2024.
  2. ^ a b "Testing Begins on New FLIRTs for TfW". Railvolution. Praha: Railway Public s.r.o. 29 July 2021. Archived from the original on 2 August 2021. Retrieved 27 December 2022.
  3. ^ a b c Pritchard, Robert (2022). British Railways Pocket Book No. 4: Electric Multiple Units (36th ed.). Sheffield: Platform 5 Publishing. pp. 132–133. ISBN 978-1-909-43183-6.
  4. ^ "Time to take stock as the 'bubble' bursts…". Rail Magazine. No. 989. 9 August 2023. pp. 42–47.
  5. ^ Bi-Mode Multiple Unit - FLIRT - Greater Anglia, UK (PDF). Bussnang: Stadler Rail Group. 27 August 2018. FEABMU0819e. Archived (PDF) from the original on 29 October 2023. Retrieved 1 August 2019.
  6. ^ a b c d FLIRT Trimodal Multiple Unit - Transport for Wales (PDF). Bussnang: Stadler Rail Group. 6 September 2022. FWBBMU0922e. Archived (PDF) from the original on 29 October 2023. Retrieved 3 December 2020.
  7. ^ Transport for Wales Rail [@tfwrail] (2 December 2019). "Lastly, our innovative tri-mode Metro trains which will enter service on the Rhymney, Coryton & Vale of Glamorgan lines in 2023, will be Class 756" (Tweet) – via Twitter.
  8. ^ "What's Happening in South East Wales". Transport for Wales. Archived from the original on 14 October 2018. Retrieved 30 September 2018.
  9. ^ "KeolisAmey reveal new-look Wales trains and services". BBC News. British Broadcasting Corporation. 4 June 2018. Retrieved 4 June 2018.
  10. ^ Fender, Keith; Sherratt, Philip (20 September 2022). "Stadler shows trains for the UK at InnoTrans". Modern Railways. Stamford: Key Publishing. Archived from the original on 20 September 2022. Retrieved 27 December 2022.