Rolling stock › On order and planned
2024 Stock unverified
Siemens' Inspiro London design: the first deep-level tube train with air-conditioning, walk-through throughout. About 80% of the build is at a new factory in Goole, East Yorkshire.
Drawing to come
- Type
- Electric multiple unit
- Builder
- Siemens Mobility, Vienna and Goole
- Built
- 2022 onwards
- In service
- first passenger service expected December 2026 – June 2027
- Lines
- Piccadilly
- Formation
- 9 cars, articulated and walk-through
- Trains in fleet
- 94 ordered
- Train length
- 113.63 m
- Car height
- 2.844 m
- Profile
- tube
- Walk-through
- Yes
- Air-conditioned
- Yes
- Seats per train
- 256
- Total capacity
- About 10% more than the 1973 Stock (TfL)
- Status
- Not yet in passenger service. Four trains are testing in London, and entry into service has slipped twice from the original end-2025 target. The programme cost is £3.4bn. Peak service will rise from 24 to 27 trains per hour.
Car types
| Code | Car | Length | Doors per side |
|---|---|---|---|
| A | Driving end car | 15.977 m | 2 double |
| B | Intermediate car (long) | 13.938 m | 2 double |
| C | Intermediate car (short) | 9.978 m | 1 double |
Sources
- Piccadilly line upgrade, TfL (fleet size, air-conditioning, walk-through, frequency)
- Piccadilly line upgrade (Made by TfL), TfL, 29 July 2026 (service window, capacity +10%)
- New Piccadilly line trains delayed further, RAIL, 27 February 2026 (second delay)
- TfL has 'credible plan' for new Piccadilly line trains after entry into service delayed again, RAIL, 16 March 2026 (four trains on test, programme cost)
- Siemens Mobility Limited to be awarded TfL contract to design and manufacture a new generation of Tube trains, TfL press release, June 2018 (contract and options)
- London Underground 2024 Stock, Wikipedia (dimensions, seats)
unverified car lengths, height, seats and order of cars (Wikipedia only), doors per car (all doorways are double; the count per car isn't published)