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#4060

New South Wales 73 class locomotive

🇦🇺 Australia ·built by Walkers Limited· from 1970· 1970–73 Australian diesel-hydraulic class

New South Wales 73 class locomotive, photo 1 of 1
1/1 Maksym Kozlenko· CC BY-SA 4.0

what is it?

The 73 class is an Australian diesel-hydraulic locomotive built by Walkers Limited, Maryborough for the New South Wales Department of Railways between 1970 and 1973.

who runs it

base stats

  • speed 64 km/htop speed
  • power 522 kWpower output
  • weight 49.8 tin working order
  • built 50made 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 56 years ago, in 1970.
  • 522 kW is about 6 family cars (~85 kW each) flat out.
  • Weighs about as much as 8 African elephants (~6 t each).
  • 11 m long: about 2 cars parked nose to tail.
  • Still in service after 56 years.

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

spec sheet

built
1970–1973
in service from
1970
status
in service
number built
50
kind
Diesel-hydraulic
traction
diesel
origin
🇦🇺 Australia
builders
Walkers Limited
operators
Department of Railways New South Wales, New South Wales Government Railways
top speed
64 km/h
power
522 kW
wheel arrangement
B'B'
length
11 m
weight
49.8 t

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

Sources: Wikidata Q7011639, Wikipedia: New South Wales 73 class locomotive (CC BY-SA 4.0).Updated 2026-10-25.

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