South Australian Railways 400 class

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South Australian Railways 400 class (1953)
SAR 400 class locomotive no 409.jpg
Type and origin
Power typeSteam
BuilderSociété Franco-Belge de Matériel de Chemins de Fer, Raismes, France under licence from Beyer, Peacock & Co.
Serial numberBP: 7622–7631, SFB: 2973–2982
Build date1952–1953
Total produced10
 • Whyte4-8-2+2-8-4 (Garratt)
 • UIC(2′D1′)(2′D1′) h4t
Gauge3 ft 6 in (1,067 mm)
Driver dia.4 ft 0 in (1.219 m)
Length87 ft 5 in (26.64 m)
Loco weight148.955 long tons (151.345 t; 166.830 short tons)
Fuel typeOil
Fuel capacity6 long tons (6.1 t; 6.7 short tons)
Water cap3,700 imperial gallons (17,000 l; 4,400 US gal)
 • Firegrate area
49 sq ft (4.6 m2)
Boiler pressure200 psi (1,379 kPa)
Heating surface1,970 sq ft (183 m2)
 • Heating area390 sq ft (36 m2)
CylindersFour, outside
Cylinder size16 in × 24 in (406 mm × 610 mm)
Performance figures
Tractive effort43,520 lbf (193.6 kN)
OperatorsSouth Australian Railways
First run1953

The South Australian Railways 400 class was a class of 4-8-2+2-8-4 steam locomotives built in the early 1950s. The 400 class locomotives mainly hauled mineral trains on the South Australian Railways' narrow gauge Broken Hill line from 1953 to 1963, when they were replaced by diesel locomotives. They operated as far as far south as Port Pirie and Terowie and as far north as Quorn. The 400 class was temporarily returned to service in 1969 while the diesel locomotives were converted to 4 ft 8 12 in (1,435 mm) standard gauge.

Some were stored at Peterborough awaiting scrapping.[1]

Two have been preserved, 402 at the Zig Zag Railway, Lithgow and 409 at the National Railway Museum, Port Adelaide.[2][3]



  1. ^ "3801 A Legend in Steam". YouTube. 15 July 2015.
  2. ^ Oberg, Leon (2007). Locomotives of Australia: 1850s - 2007. Rosenberg Publishing. pp. 271–272. ISBN 1-877058-54-8.
  3. ^ "Museum Exhibit - 400-class". National Railway Museum Port Adelaide.


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