X Class
Owners: TGR, AN- Power: 490kw (660hp) Motor: English Electric 6SRKT
- Wheel Arrangement: Bo - Bo Weight: 58t
- Allowable load on 1:40 grade: 210t (270t for an XA)
- Length over headstocks: 10.3m (34ft 0in)
- Introduced: 1950
- Built By: English Electric Co, England