| London Underground 2024 Stock | |
|---|---|
 Finalised concept design of the 2024 Stock | |
| Stock type | Deep-level tube |
| In service | Planned for 2025 |
| Manufacturer | Siemens Mobility |
| Built at | |
| Family name | Inspiro |
| Replaced | 1973 Stock |
| Constructed | 2022–present |
| Formation | 9 cars per train[1] |
| Capacity | 1,042 per train (256 seated)[1] |
| Lines served | Piccadilly |
| Specifications | |
| Train length | 113.7 m (373 ft 3⁄8 in)[1] |
| Width | 2.648 m (8 ft 8+1⁄4 in)[1] |
| Height | 2.844 m (9 ft 3+15⁄16 in)[1] |
| Maximum speed | 100 km/h (62 mph)[1] |
| Power output | 2.5 MW (3,400 hp)[1] |
| Electric system(s) | Fourth rail, 630 or 750 V DC[1] |
| Current collector(s) | Contact shoe |
| Bogies | Siemens Mobility SF1800[2] |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
| Notes/references | |
 London transport portal | |
The London Underground 2024 Stock, known as the New Tube for London (NTfL) during development, is a London Underground train being built by Siemens Mobility at its facilities in Goole, United Kingdom and Vienna, Austria. It is part of the Siemens Inspiro family of metro and rapid-transport trains.
An initial batch of 94 nine-car trains has been ordered at a cost of £1.5 billion to replace 1973 Stock trains on the Piccadilly line, with options for a total of 250 trains allowing replacement of all existing trains on the deep-level Central, Waterloo & City and Bakerloo lines. The first train was delivered for testing in London in October 2024. Planned starting date for the service is the end of 2025, first on the Piccadilly line, with full deployment by the end of 2027. The trains will enter service with a train driver, with future potential for driverless operation.