| British Rail Class 799 HydroFLEX | |
|---|---|
 The prototype unit, number 799001 | |
| Manufacturer |
|
| Family name | BR Second Generation (Mark 3) |
| Constructed | 2019, 2021 |
| Number built | 2 |
| Number scrapped | 1 |
| Formation | 4 cars per unit |
| Fleet numbers | 799001, 799201[1] |
| Specifications | |
| Car body construction | Steel |
| Car length |
|
| Width | 2.816 m (9 ft 2.9 in) |
| Height | 3.774 m (12 ft 4.6 in) |
| Wheelbase | Over bogie centres: 14.17 m (46 ft 6 in) |
| Prime mover(s) | Ballard FCveloCity |
| Engine type | Hydrogen fuel cell |
| HVAC | Electric heating |
| Electric system(s) | |
| Current collector(s) |
|
| Braking system(s) | Electro-pneumatic (disc) |
| Safety system(s) | |
| Coupling system | Tightlock |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
The British Rail Class 799 HydroFLEX is a prototype class of bi-mode[3] multiple unit adapted from Class 319 electric multiple units (319001/382). The existing 25 kV AC and 750 V DC equipment has been retained with a hydrogen fuel cell added, currently taking up one of the carriages.
- ^ "Class 319 fleet in focus". Rail Express. No. 321. February 2023. p. 29.
- ^ Class 319 Electric Multiple Unit (PDF) (1A ed.). Derby: Porterbrook. August 2012. Archived from the original (PDF) on 21 April 2015. Retrieved 23 January 2014.
- ^ Cite error: The named reference
re-sep18was invoked but never defined (see the help page).