WAGR Dd class

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WAGR Dd class
Dd592 Jandakot, 1986.JPG
Dd592 passes through Jandakot with an ARHS excursion train, 1986
Type and origin
Power typeSteam
Builder Midland Railway Workshops
Build date1946
Total produced10
Specifications
Configuration:
   Whyte 4-6-4T
Gauge 3 ft 6 in (1,067 mm)
Driver dia.4 ft 6 in (1,372 mm)
Length43 ft 3 in (13.18 m)
Loco weight72  long tons  0 cwt (161,300 lb or 73.2 t)
Fuel typeCoal
Water cap.1,820 imp gal (8,300 L; 2,190 US gal)
Firebox:
  Grate area18.6 sq ft (1.73 m2)
Boiler pressure160 lbf/in2 (1.10 MPa)
Cylinder size 18 in × 23 in (457 mm × 584 mm)
Valve gear Walschaerts
Performance figures
Tractive effort 18,768 lbf (83.48 kN)
Factor of adh. 4.7
Career
Operators Western Australian Government Railways
NumbersDd591-Dd600
Nicknames Donald Ducks
PreservedDd592, Dd596
Disposition2 preserved, 8 scrapped

The WAGR Dd class was a class of 4-6-4T tank locomotive operated by the Western Australian Government Railways (WAGR) between 1946 and 1972.

Contents

History

The Dd type was an evolution of the Dm class. However unlike the Dm class which used components of the old E Class tender engines, the Dd class components were all new. [1] All were built at the Midland Railway Workshops entering service between April and November 1946. They were built to haul suburban passenger services in Perth, although they did on occasions work to Bunbury on the South Western and Merredin on the Eastern lines. [2] [3] [4] The first were withdrawn in 1969, with the remainder in 1970/71 following the entry into service of the ADK/ADB class diesel multiple units. [2] [3]

Preservation

Two have been preserved:

Class list

The numbers and periods in service of each member of the Dd class were as follows: [9]

Road
number
In serviceWithdrawnNotes
59112 April 194610 February 1969
59217 May 194614 August 1972Preserved at Western Australian Rail Transport Museum
59314 June 194610 September 1970
59428 June 194610 February 1969
59519 July 194617 June 1971
5969 August 194617 June 1971Preserved at Gosnells Railway Market
59731 August 194617 June 1971
59820 September 194610 February 1969
59911 October 194610 February 1969
6001 November 194610 September 1970

See also

References

Notes

  1. Gunzburg 1984, p. 125.
  2. 1 2 Turner, Jim (1997). Australian Steam Locomotives 1896-1958. Kenthurst: Kangaroo Press. p. 141. ISBN   086417778X.
  3. 1 2 Oberg, Leon (2010). Locomotives of Australia 1850s-2010. Dural: Rosenberg Publishing. pp. 230–231. ISBN   9781921719011.
  4. Clark, Peter (2012). The Australian Locomotive Guide. Dural: Rosenberg Publishing. p. 46. ISBN   9781922013682.
  5. 1 2 Whiteford, David; De Bruin, Charles; Watson, Lindsay; Watson, Neville (1983). Western Australian Preserved Locomotives. Elizabeth: Railmac Publications. p. 7. ISBN   0-949817-19-8.
  6. 1 2 D and Dm Class Tank Locomotive Rail Heritage WA
  7. Dd592 Australian Steam
  8. Dd596 Australian Steam
  9. Gunzburg 1984, p. 126.

Bibliography

  • Gunzburg, Adrian (1968). WAGR Locomotives 1940–1968. Perth: Australian Railway Historical Society (Western Australian Division). pp. 13–15, 47. OCLC   219836193.
  • Gunzburg, Adrian (1984). A History of WAGR Steam Locomotives. Perth: Australian Railway Historical Society (Western Australian Division). ISBN   0959969039.

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