#1633
GNR Class O1
🇬🇧 United Kingdom ·built by Doncaster Works· from 1913· class of 20 two-cylinder 2-8-0 locomotives
what is it?
The Great Northern Railway (GNR) Class O1 was a class of two-cylinder 2-8-0 steam locomotive designed by Nigel Gresley for heavy freight work and built by the GNR between 1913 and 1919.
who runs it
base stats
Bars compare against all trains: 600 km/h (maglev), 1,700 seats; power, weight and number built on a log scale up to 20 MW, 1,000 t and 20,000 built.
fun facts
- First built 113 years ago, in 1913.
- 18.3 m long: about 4 cars parked nose to tail.
- Served for 39 years (1913–1952).
steam locomotive: Burns coal, wood or oil to boil water; the steam drives pistons that turn the wheels.
spec sheet
- built
- 1913–1919
- in service from
- 1913
- retired
- 1952
- status
- retired
- number built
- 20
- kind
- Steam
- traction
- steam
- origin
- 🇬🇧 United Kingdom
- builders
- Doncaster Works, North British Locomotive Company
- designer
- Nigel Gresley
- operators
- Great Northern Railway, London and North Eastern Railway, British Rail, Eastern Region of British Railways
- top speed
- —
- power
- —
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- 2-8-0
- length
- 18.3 m
- nicknames
- Tangos
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q5514006, Wikipedia: GNR Class O1 (CC BY-SA 4.0).Updated 2026-10-25.