London Underground 2024 Stock

London Underground 2024 Stock
A 2024 Stock prototype at Ealing Common Depot
Stock typeDeep-level tube
In servicePlanned for late 2026
ManufacturerSiemens Mobility
Built at
Family nameInspiro
Replaced1973 Stock
Constructed2022 (prototypes)–present
Formation9 cars per train
Capacity1,042 per train (256 seated)
Depots
Lines servedPiccadilly
Specifications
Car body constructionBionic lightweight aluminium
Train length113.7 m (373 ft 38 in)
Width2.648 m (8 ft 8+14 in)
Height2.844 m (9 ft 3+1516 in)
Maximum speed100 km/h (62 mph)
Weight155.401 tonnes (152.947 long tons; 171.300 short tons)
Traction systemSiC-MOSFET VVVF
Traction motorsSiemens 1DB1619-0GA04 Permanent Magnet Synchronous Motor
Power output2.5 MW (3,400 hp)
Electric system(s)Fourth rail, 630 or 750 V DC
Current collector(s)Contact shoe
BogiesSiemens SF1800
Coupling systemDellner
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Notes/references
London transport portal

The London Underground 2024 Stock, known during development as the New Tube for London (NTfL), is a type of London Underground rolling stock 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. The trains are to enter service from the second half of 2026. The trains will enter service with a train driver, with future potential for driverless operation.