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#3536· Class 45

British Rail Class 45

🇬🇧 United Kingdom ·built by British Rail· from 1960· class of 127 (1Co)(Co1) diesel electric locomotives

British Rail Class 45, photo 1 of 2
1/2 MaltaGC· CC BY-SA 3.0

what is it?

The British Rail Class 45 or Sulzer Type 4 are a type of diesel locomotives built by British Railways' Derby and Crewe Works between 1960 and 1962. Along with the similar Class 44 and 46 locomotives, they became known as Peaks.

who runs it

base stats

  • speed 145 km/htop speed
  • power 1.9 MWpower output
  • built 127made 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 66 years ago, in 1960.
  • Top speed is 1.1× a car on the Dutch motorway (130 km/h).
  • 1.9 MW is about 22 family cars (~85 kW each) flat out.
  • 20.4 m long: about 5 cars parked nose to tail.
  • Served for 29 years (1960–1989).

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

spec sheet

built
1960–1962
in service from
1960
retired
1989
status
preserved
number built
127
kind
Diesel-electric
traction
diesel
origin
🇬🇧 United Kingdom
builders
British Rail, Derby Works, Crewe Works
operators
British Rail, London Midland Region of British Railways
top speed
145 km/h
power
1.9 MW
wheel arrangement
(1′Co)(Co1′)
length
20.4 m
nicknames
Peak
Dutch name
Class 45

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

Sources: Wikidata Q4970816, Wikipedia: British Rail Class 45 (CC BY-SA 4.0).Updated 2026-10-25.

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