WAGR D class

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WAGR D class
WAGR D class (1912) builder's photograph.jpg
Builder's photograph of a D class
Type and origin
Power typeSteam
Builder North British Locomotive Company
Serial number19709-19728
Build date1912
Total produced20
Specifications
Configuration:
​
 •  Whyte 4-6-4T
Gauge 3 ft 6 in (1,067 mm)
Driver dia.4 ft 6 in (1,372 mm)
Length42 ft 6 in (12.95 m)
Loco weightAs built: 68  long tons  5 cwt (152,900 lb or 69.3 t)
Superheated: 70  long tons  0 cwt (156,800 lb or 71.1 t)
Fuel typeCoal
Fuel capacity4 long tons 0 cwt (9,000 lb or 4.1 t)
Water cap.1,600 imp gal (7,300 L; 1,900 US gal)
Firebox:
 • Firegrate area		18.63 sq ft (1.731 m2)
Boiler pressureAs built: 175 lbf/in2 (1.21 MPa)
Superheated: 160 lbf/in2 (1.10 MPa)
Cylinder size As built: 17 in × 23 in (432 mm × 584 mm)
Superheated: 18 in × 23 in (457 mm × 584 mm)
Performance figures
Tractive effort As built: 17,233 lbf (76.66 kN)
Superheated: 18,768 lbf (83.48 kN)
Factor of adh. As built: 4.7
Superheated: 4.6
Career
Operators Western Australian Government Railways
NumbersD368-D387
Dispositionall scrapped

The WAGR D class was a class of 4-6-4T tank locomotive operated by the Western Australian Government Railways (WAGR) between 1912 and 1964.

Contents

History

In 1911 the WAGR placed an order with the North British Locomotive Company for twenty 4-6-4T locomotives to haul suburban passenger services in Perth. All entered service between June and September 1912. Commencing in 1932, all bar D386 were rebuilt as the Ds class with superheated boilers. In 1935, D377 was fitted with larger side tanks increasing its water capacity by 210 gallons, these were removed in May 1959. With the arrival of the ADH class diesel multiple units in 1953, withdrawals commenced with the last withdrawn in November 1965. [1] [2] [3]

The D class was also the basis for the later Dm and Dd classes of tank engine, which continued this role until the end of steam. [1]

Class list

The numbers and periods in service of each member of the D class were as follows: [4]

Builder's
number		Road
number		In serviceSuperheatedWithdrawnNotes
197093686 July 19121 April 19335 March 1964
1971036913 July 19123 July 19357 October 1963
197113706 July 191221 December 193314 February 1952
197123716 July 191215 May 193318 November 1965Stowed 31 July 1964
197133726 July 191223 September 194722 July 1963
1971437329 June 191215 November 19395 March 1964
1971537429 June 191230 May 193423 April 1963
1971637513 July 19129 April 193219 October 1964Stowed 1 April 1964
1971737629 June 191227 April 193412 November 1963Stowed 2 September 1963
1971837720 July 19125 September 193515 May 1962Tanks extended 5 September 1935 to May 1959
1971937813 July 191221 April 194412 December 1963
1972037921 September 19126 November 193331 October 1961
1972138014 September 191225 July 194717 March 1954
1972238128 September 191219 March 193216 March 1964
1972338221 September 191227 September 19351 March 1962
1972438321 September 191218 April 193116 September 1953
1972538428 September 191229 March 193416 August 1962
1972638528 September 191216 May 193216 August 1954
1972738621 September 191215 May 1950Not superheated
1972838714 September 191214 December 194619 June 1953

Namesakes

The D class designation was previously used for the D class locomotive that was withdrawn in 1903. It was reused in the 1970s when the D class diesel locomotives entered service.

See also

Related Research Articles

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References

Notes

  1. 1 2 Gunzburg 1984, pp. 93–94.
  2. ↑ Turner, Jim (1997). Australian Steam Locomotives 1896-1958. Kenthurst: Kangaroo Press. p. 58. ISBN   086417778X.
  3. ↑ Oberg, Leon (2010). Locomotives of Australia 1850s-2010. Dural: Rosenberg Publishing. pp. 153–154. ISBN   9781921719011.
  4. ↑ Gunzburg 1984, p. 94.

Cited works

  • Gunzburg, Adrian (1984). A History of WAGR Steam Locomotives. Perth: Australian Railway Historical Society (Western Australian Division). ISBN   0959969039.

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