#1973
CN U-1-a and U-1-b
🇨🇦 Canada ·built by Canadian Locomotive Company· from 1923· class of 37 Canadian two-cylinder 4-8-2 locomotives
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2 photos from Wikimedia Commons · credits & licences
- 1. CN 6015: Zeitlupe ( talk )· CC BY-SA 3.0
- 2. Trains (65) - 35250938513: hans m.· Public domain
what is it?
The Canadian National U-1-a and U-1-b class locomotives were two subclasses of 37 4-8-2 Mountain-type steam locomotives built for the Canadian National Railways between 1923 and 1924. They were retired between 1951 and 1962. Classes U-1-c/d/e were identical locomotives to U-1-b, built for the Grand Trunk Western.
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 103 years ago, in 1923.
- 27.4 m long: about 6 cars parked nose to tail.
steam locomotive: Burns coal, wood or oil to boil water; the steam drives pistons that turn the wheels.
spec sheet
- built
- 1923–1924
- number built
- 37
- kind
- Steam
- traction
- steam
- origin
- 🇨🇦 Canada
- builders
- Canadian Locomotive Company
- operators
- Canadian National Railway
- top speed
- —
- power
- —
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- 4-8-2
- length
- 27.4 m
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q5013229, Wikipedia: CN U-1-a and U-1-b (CC BY-SA 4.0).Updated 2026-10-25.