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#6154

British Rail Class 140

🇬🇧 United Kingdom ·built by British Rail Engineering Limited· prototype 2-car railbus

British Rail Class 140, photo 1 of 3
1/3 Phil Richards from London, UK· CC BY-SA 2.0

what is it?

The British Rail Class 140 was the prototype of the Pacer diesel multiple unit (DMU). It was constructed between 1979 and 1981, in response to a desire within British Rail (BR) to develop a capable railbus for its smaller branch line services. Much of the bodywork was constructed using Leyland National bus components, with the exception of the cabs.

who runs it

base stats

  • speed 121 km/htop speed
  • power 153 kWpower output
  • weight 23.2 tin working order
  • seats 102passengers
  • 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

  • Weighs about as much as 4 African elephants (~6 t each).
  • 15.9 m long: about 4 cars parked nose to tail.
  • Seats 102: 2 full city buses (~50 seats each).

multiple unit: A self-propelled train: motors are spread under the passenger cars, so no separate locomotive.

spec sheet

built
—
number built
1
kind
multiple unit
traction
diesel
origin
🇬🇧 United Kingdom
builders
British Rail Engineering Limited, British Leyland
operators
British Rail
top speed
121 km/h
power
153 kW
gauge
1,435 mm standard gauge
formation
2 vehicles: DMSL, Driver's cab, Motor car, Standard class saloon, Lavatory-DMS, Driver's cab, Motor car, Standard class…
length
15.9 m
weight
23.2 t
capacity
102 passengers

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

Sources: Wikidata Q12857857, Wikipedia: British Rail Class 140 (CC BY-SA 4.0).Updated 2026-10-25.

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