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#3157

Commonwealth Railways NSU class

🇦🇺 Australia ·built by Birmingham Railway Carriage and Wagon Company· from 1954· class of 14 Australian 840 hp diesel locomotives built by BRCW

Commonwealth Railways NSU class, photo 1 of 9
1/9 Tdc· CC BY-SA 3.0

what is it?

The Commonwealth Railways NSU class is a class of diesel-electric locomotives built in 1954 and 1955 by the Birmingham Railway Carriage and Wagon Company, England, for the Commonwealth Railways to be deployed on the demanding narrow-gauge Central Australia Railway and North Australia Railway. The last withdrawal from revenue service was in 1987. As of 2025, all 14 locomotives were extant – two operating – but 8 had been kept outdoors and were in various states of deterioration.

who runs it

base stats

  • speed 80 km/htop speed
  • power 630 kWpower output
  • weight 60 tin working order
  • built 14made 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 72 years ago, in 1954.
  • 630 kW is about 7 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 33 years (1954–1987).

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

spec sheet

built
1954–1955
in service from
1954
retired
1987
status
retired
number built
14
kind
Diesel-electric
traction
diesel
origin
🇦🇺 Australia
builders
Birmingham Railway Carriage and Wagon Company
operators
Commonwealth Railways, Australian National Railways Commission
top speed
80 km/h
power
630 kW
gauge
1,067 mm Cape gauge
wheel arrangement
A1A–A1A
length
12.8 m
weight
60 t

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

Sources: Wikidata Q5153844, Wikipedia: Commonwealth Railways NSU class (CC BY-SA 4.0).Updated 2026-10-25.

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