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British Rail Class 370

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British Rail Class 370
Advanced Passenger Train – Prototype
Class 370 at Carlisle
First-class saloon in a preserved vehicle.
(The plain blue seat covers are post-withdrawal replacements for the original tartan material.)
In service1980–1986
ManufacturerBritish Rail Engineering Limited
Built atDerby Works[1]
Family nameAdvanced Passenger Train
Constructed1977–1980[2]
Entered service1979[3]
Number built3 full sets
(6 units plus 2 spare vehicles)[3]
Number preserved7 vehicles
Formation7 cars per unit:
DTS-TS-TRSB-TU-TF-TBF-M
(full set is 2 units back-to-back)
Diagram
  • DTS vehicles: LE201
  • TS vehicles: LH201
  • TRSB vehicles: LK201
  • TU vehicles: LH401
  • TF vehicles: LH101
  • TBF vehicles: LJ101
  • M vehicles: LC501
Fleet numbers370001–370006[3]
Operator(s)British Rail InterCity
Depot(s)Shields Road (Glasgow)[4]
Line(s) servedWest Coast Main Line
Specifications
Car body construction
Train length147 m (482 ft)[5]
Car length
  • DTS vehs.: 21.440 m (70 ft 4.1 in)
  • M vehs.: 20.400 m (66 ft 11.1 in)
  • Others: 21.000 m (68 ft 10.8 in)
  • (all including gangway portions)
Width2.720 m (8 ft 11.1 in)
Height
  • M vehicles: 3.397 m (11 ft 1.7 in)
  • Others: 3.510 m (11 ft 6.2 in)
Wheelbase
  • Over DTS/TBF veh. pivot centres:
    14.850 m (48 ft 8.6 in)
  • Over articulated vehicle pivots:
    15.900 m (52 ft 2.0 in)
  • Over M vehicle pivot centres:
    13.000 m (42 ft 7.8 in)
Maximum speed125 mph (200 km/h)
Weight
  • DTS vehicles: 35 t (34 LT; 39 ST)
  • TBF vehicles: 33 t (32 LT; 36 ST)
  • M vehicles: 67.5 t (66.4 LT; 74.4 ST)
  • Others: 24 t (24 LT; 26 ST)
Traction motors4 × ASEA LJMA 410 F
Power output3,000 kW (4,000 hp) continuous
Electric system(s)Template:25 kV 50 Hz overhead
Current collection methodPantograph
UIC classification2′(2′)(2′)(2′)(2′)(2′)2′+Bo′Bo′
Bogies
  • M vehicles: BREL BP17
  • At articulations: BREL BT11
  • Others: BREL BT12
Minimum turning radius91 m (300 ft)
Braking system(s)Hydraulic and hydrokinetic[6]
Safety system(s)
Multiple workingWithin class (max. 2 units)
Track gauge1,435 mm (4 ft 8 12 in) standard gauge
Notes
Specifications given for seven-car units as at August 1981,[8] except where otherwise noted. A full set train would be formed of two units coupled back-to-back.
APT-P Driving Trailer Second (DTS) unit, in revised APT branding, with a black "mask" around the driver's window.
APT-P Non-Driving Motor (NDM) unit, with high-speed pantograph.

British Rail's Class 370 tilting trains, also referred to as APT-P (meaning Advanced Passenger Train Prototype), were the pre-production Advanced Passenger Train units. Unlike the earlier experimental gas-turbine APT-E unit, these units were powered by 25kV AC overhead electrification and were used on the West Coast Main Line between London Euston and Glasgow Central. The APT-P is the most powerful domestic train to have operated in Britain, the eight traction motors fitted to the two central Motor Cars giving a total output of 8,000 hp. This enabled the train to set the UK rail speed record of 162.2 mph in December 1979, a record that stood for 23 years.[9]

References[change | change source]

  1. "Advanced Passenger Train – Prototype". The Crewe Heritage Centre. Archived from the original on 24 June 2015. Retrieved 1 December 2015.
  2. "BR, Class 370 Advanced Passenger Train Non-Driving Motor (NDM), 49004, Era 7". Hornby.com. Retrieved 24 February 2021.
  3. 3.0 3.1 3.2 Marsden 1983, pp. 119–120
  4. Coxon, Dave. "High speed pantograph testing in Scotland in October 1983". Testing Times. Retrieved 10 February 2023.
  5. Boocock & Newman 1976, p. 660, Table 1.
  6. British Rail's Advanced Passenger Train – InterCity APT (PDF). Derby: Chief Mechanical & Electrical Engineers' Department, British Railways Board. 1979. GM869/A10/1279. Retrieved 10 February 2023.
  7. Tomorrow's train, today (PDF). London: British Railways Board. 1980. GM1000/A7/980. Retrieved 10 February 2023.
  8. Vehicle Diagram Book No. 210 for Electric Multiple Units (including A.P.T.) (PDF). Derby: Mechanical & Electrical Engineering Department, British Railways Board. LC501, LE201, LH101, LH201, LH401, LJ101, LK201 (in work pp. 428–441). Archived from the original (PDF) on 21 January 2015. Retrieved 10 February 2023 – via Barrowmore MRG.
  9. "Train smashes speed record". 30 July 2003 – via news.bbc.co.uk.