| 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 service | 1980–1986 |
| Manufacturer | British Rail Engineering Limited |
| Built at | Derby Works |
| Family name | Advanced Passenger Train |
| Constructed | 1977–1980 |
| Entered service | 1979 |
| Number built | 3 full sets (6 units plus 2 spare vehicles) |
| Number preserved | 7 vehicles |
| Formation | 7 cars per unit: DTS-TS-TRSB-TU-TF-TBF-M (full set is 2 units back-to-back) |
| Diagram |
|
| Fleet numbers | 370001–370006 |
| Operators | British Rail InterCity |
| Depots | Shields Road (Glasgow) |
| Lines served | West Coast Main Line |
| Specifications | |
| Car body construction | |
| Train length | 147 m (482 ft) |
| Car length |
|
| Width | 2.720 m (8 ft 11.1 in) |
| Height |
|
| Wheelbase |
|
| Maximum speed | 125 mph (200 km/h) |
| Weight |
|
| Traction motors | 4 × ASEA LJMA 410 F |
| Power output | 3,000 kW (4,000 hp) continuous |
| Electric system(s) | 25 kV 50 Hz AC overhead |
| Current collector(s) | Pantograph |
| UIC classification | 2′(2′)(2′)(2′)(2′)(2′)2′+Bo′Bo′ |
| Bogies |
|
| Minimum turning radius | 91 m (300 ft) |
| Braking system(s) | Hydraulic and hydrokinetic |
| Safety system(s) |
|
| Multiple working | Within class (max. 2 units) |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) standard gauge |
| Notes/references | |
| Specifications given for seven-car units as at August 1981, except where otherwise noted. A full set train would be formed of two units coupled back-to-back. | |


British Rail's Class 370 tilting trains, also called 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.