South Australian Railways 750 class

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South Australian Railways 750 Class
SAR 752, NRM, 2014.JPG
Preserved 752 at the National Railway Museum, Port Adelaide, 2014
Type and origin
Power typeSteam
Builder North British Locomotive Company
Build date1950/51
Total produced10
Specifications
Configuration:
   Whyte 2-8-2
Gauge 1,600 mm (5 ft 3 in)
Leading dia. 3 ft 1.4 in (950 mm)
Driver dia.4 ft 7.75 in (1,416 mm)
Trailing dia. 3 ft 1.4 in (950 mm)
Length67 ft 5 in (20.55 m)
Height13 ft 11+38 in (4,251.3 mm)
Axle load 13 long tons 17 cwt (31,000 lb or 14.1 t)
Adhesive weight 54.65 long tons 0 cwt (122,400 lb or 55.5 t)
Loco weight76.00 long tons 0 cwt (170,200 lb or 77.2 t)
Tender weight48.655 long tons 0 cwt (109,000 lb or 49.4 t)
Total weight124  long tons  65 cwt (285,000 lb or 129.3 t)
Fuel type Coal
Fuel capacity6 long tons 0 cwt (13,400 lb or 6.1 t)
Water cap.4,600 imp gal
(5,500 US gal; 21,000 L)
Firebox:
  Firegrate area
31 sq ft (2.9 m2)
Boiler pressure175 psi (1,207 kPa)
Heating surface:
  Tubes
1,250 sq ft (116 m2)
  Firebox203 sq ft (18.9 m2)
Superheater:
  Heating area324 sq ft (30.1 m2)
Cylinders 2
Cylinder size 20 in × 26 in (508 mm × 660 mm)
Valve gear Walschaerts
Valve type Piston
Performance figures
Tractive effort 28,650 lbf (127.44 kN)
Factor of adh. 4.27
Career
Operators South Australian Railways
Class 750
Number in class10
Numbers750-759
First run11/12/1950 On V.R.
5/1/1951 On S.A.R.
Withdrawn1961-1969
Preserved752
Scrapped1962-1967
Disposition1 preserved, 9 scrapped

The South Australian Railways 750 class was a class of 2-8-2 steam locomotives operated by the South Australian Railways.

Contents

History

With an acute shortage of motive power following World War II, the South Australian Railways were able to purchase 10 Victorian Railways N class locomotives in 1951 which had been in service for only a few months. They replaced Rx class locomotives on branch line services particularly over the light lines in the Murray Mallee radiating from Tailem Bend. Withdrawals began in July 1961 with the last withdrawn in September 1967. [1]

752 is the sole survivor of the class, being placed in the Mile End Railway Museum in April 1967. It was later moved to the Port Dock Railway Museum (now the National Railway Museum, Port Adelaide) in 1988. [2]

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References

  1. Oberg, Leon (1984). Locomotives of Australia 1850s-1980s. Frenchs Forest: Reed Books. p. 140. ISBN   0730100057.
  2. "Locomotive 752 - National Railway Museum". National Railway Museum. Retrieved 11 December 2023.

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