Rolling stock › In serviceData updated
Class 73 (73/1 and 73/9)
Class 73 (73/1 and 73/9): a electro-diesel (third rail and diesel) locomotive (Bo-Bo (UIC Bo'Bo')), built by English Electric, Vulcan Foundry (73/9: rebuilt by Brush Traction/Wabtec from 2013), 1965-1967; 73/9 rebuilds 2013 onward. A freight locomotive: not drawn yet (set FRT).
Drawing to come
- Type
- electro-diesel (third rail and diesel) locomotive
- Builder
- English Electric, Vulcan Foundry (73/9: rebuilt by Brush Traction/Wabtec from 2013)
- Built
- 1965-1967; 73/9 rebuilds 2013 onward
- In service
- since 1965
- Top speed
- 90 mph (145 km/h)
- Power
- 1,193 kW (1,600 hp); 750 V DC third rail (1,600 hp one-hour); 73/1: EE 4SRKT diesel 600 hp; 73/9: Cummins QSK19 or MTU 8V 4000 R43L · how it works
- Profile
- main-line
- Status
- GBRf: 9 x 73/1 and 11 x 73/9 (5 'Tier 1' for Network Rail, 6 'Tier 2' for Caledonian Sleeper, passenger). Network Rail sold its two 73/9 in 2023. Weight 76.8 long tons (78.0 t) Wikipedia; 77 t GBRf page.
unverified Some of these figures haven’t yet been checked against an official source or a published history. What’s in doubt ↓
Sources
How we source figures → · Spotted a mistake? Tell us → (opens in a new tab)
- British Rail Class 73 Wikipedia (secondary; must be paired), 2026-10-25infobox
- GB Railfreight - Locomotives page GB Railfreight, undated (read 2026-10-25)77 t, 90 mph (145 km/h), 9 + 11
unverified
- Height, width and bogie dimensions not on the page.
- 73/9 diesel power (1,500 hp) differs from the 73/1 class figure (600 hp / 447 kW).
- Length 53 ft 8 in (16.36 m) is not stated as over buffers.
- Not drawn: no drawing yet; the dimensions are in freight_data and their sources in dimension_sources (set FRT, October 2026)
Know a source for one of these? Send it to us → (opens in a new tab)