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Sri Lanka Railways W1

🇱🇰 Sri Lanka ·built by Henschel & Sohn· from 1969· class of 45 diesel-hydraulic locomotives

Sri Lanka Railways W1, photo 1 of 1
1/1 Joost J. Bakker from IJmuiden· CC BY 2.0

what is it?

Sri Lanka Railways W1 is a class of Sri Lankan diesel-hydraulic locomotive that was built by Rheinstahl Henschel in 1969 for use by Sri Lanka Railways (SLR). This is the first diesel-hydraulic locomotive to run on Sri Lankan rails.

who runs it

base stats

  • speed 80 km/htop speed
  • power 858 kWpower output
  • weight 60.5 tin working order
  • built 45made 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 57 years ago, in 1969.
  • 858 kW is about 10 family cars (~85 kW each) flat out.
  • Weighs about as much as 10 African elephants (~6 t each).
  • 12.8 m long: about 3 cars parked nose to tail.
  • Served for 26 years (1969–1995).

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

spec sheet

built
1969
in service from
1969
retired
1995
status
in service
number built
45
kind
Diesel-hydraulic
traction
diesel
origin
🇱🇰 Sri Lanka
builders
Henschel & Sohn
operators
Sri Lanka Railways
top speed
80 km/h
power
858 kW
gauge
1,676 mm Indian broad gauge
wheel arrangement
B′B′
length
12.8 m
weight
60.5 t

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

Sources: Wikidata Q17076237, Wikipedia: Sri Lanka Railways W1 (CC BY-SA 4.0).Updated 2026-10-25.

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