South Australian Railways 500 class (steam)

South Australian Railways 500 class

502 at Eden Hills in August 1953
Type and origin
Power type Steam
Designer Fred Shea
Builder Armstrong Whitworth
Serial number 633-642
Build date 1926
Total produced 10
Specifications
Configuration 4-8-2 (as built)
4-8-4 (after rebuilding)
Gauge 5 ft 3 in (1,600 mm)
Driver dia. 5 ft 3 in (1,600 mm)
Fuel type Coal
Fuel capacity 12 long tons 0 cwt (26,900 lb or 12.2 t)
Boiler pressure 200 psi (1,379 kPa)
Cylinders 2
Cylinder size 26 in × 28 in (660 mm × 711 mm)
Career
Operators South Australian Railways
Numbers 500-509
Withdrawn 1955-1962
Preserved 504
Scrapped 1961-1965
Disposition 1 preserved, 9 scrapped

The South Australian Railways 500 class was a class of 4-8-2 steam locomotives operated by the South Australian Railways. They were rebuilt as 4-8-4s.

History

The 500 class were part of larger order for 30 steam locomotives placed with Armstrong Whitworth, England, in 1924, as part of the rehabilitation of the state's rail system being overseen by Railways Commissioner William Webb. They replaced the Rx and S class locomotives, many dating back to 1894, that were still performing mainline duties, meaning that double and even triple heading was common. All ten 500-class locomotives arrived in Adelaide in 1926, and entered service on the Adelaide to Wolseley line as far as Tailem Bend. All were named after notable South Australians.[1]

Rebuilding

In May 1928, 506 was experimentally fitted with a booster, included in a newly-created four wheel trailing truck. This American-inspired modification proved highly successful, increasing the locomotive's tractive effort from 51,000 pounds-force (230 kN) to 59,000 pounds-force (260 kN). This modification was subsequently fitted to the nine remaining locomotives, resulting in the class becoming the 4-8-4 class 500B.

Throughout the mid-1930s all but two of the locomotives in the class were semi-streamlined and had valances fitted. The first two 500-class locomotives were withdrawn from service in 1955 and the last was withdrawn in 1962.[1]

504 is preserved as a static exhibit at the National Railway Museum, Port Adelaide.[2]

Class list

Number Date in Service Date Condemned Name
500 4 June 1926 May 1963 James McGuire
501 2 July 1926 September 1958 Sir Henry Barwell
502 22 May 1926 July 1961 John Gunn
503 23 July 1926 July 1962 RL Butler
504 18 October 1926 July 1962 Tom Barr-Smith
505 28 October 1926 July 1962 Sir Tom Bridges
506 25 October 1926 July 1962 Sir George Murray
507 12 October 1926 March 1958 Margaret Murray
508 14 September 1926 July 1962 Sir Lancelot Stirling
509 24 August 1926 July 1961 WA Webb

References

  1. 1 2 Oberg, Leon (1984). Locomotives of Australia 1850s-1980s. Frenchs Forest: Reed Books. p. 147. ISBN 0 7301 0005 7.
  2. "Tom Barr Smith". National Railway Museum. Retrieved 2016-10-31.

Further reading

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