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#4090

MLW M-640

🇨🇦 Canada ·built by Montreal Locomotive Works· from 1971· model of 1 Canadian diesel-electric locomotive

MLW M-640, photo 1 of 2
1/2 railfan 44· Public domain

what is it?

The MLW M-640 (also known as Canadian Pacific 4744 or CP Rail 4744) is a 4,000 horsepower (3,000 kilowatts) six-axle diesel-electric locomotive built by the Montreal Locomotive Works in March of 1971 for the Canadian Pacific Railway (CP Rail).

who runs it

base stats

  • speed 120 km/htop speed
  • power 3 MWpower output
  • built 1made in total

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 55 years ago, in 1971.
  • 3 MW is about 35 family cars (~85 kW each) flat out.
  • Served for 21 years (1971–1992).

diesel locomotive: A diesel engine on board drives the wheels, usually through a generator (diesel-electric).

spec sheet

built
1971
in service from
1971
retired
1992
status
retired
number built
1
kind
Diesel-electric
traction
diesel
origin
🇨🇦 Canada
builders
Montreal Locomotive Works
designer
American Locomotive Company
operators
Canadian Pacific Railway
top speed
120 km/h
power
3 MW
gauge
1,435 mm standard gauge
wheel arrangement
C-C (1971-1984)

From the Wikipedia infobox and Wikidata. Blank means the sources don't say.

Sources: Wikidata Q123554876, Wikipedia: MLW M-640 (CC BY-SA 4.0).Updated 2026-10-25.

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