WAGR Dd class explained

WAGR Dd class
Powertype:Steam
Builder:Midland Railway Workshops
Builddate:1946
Totalproduction:10
Whytetype:4-6-4T
Driverdiameter:4feet
Length:43feet
Fueltype:Coal
Watercap:1820impgal
Boilerpressure:1602NaN2
Firearea:18.6square feet
Cylindersize:18x
Valvegear:Walschaerts
Tractiveeffort:187682NaN2
Factorofadhesion:4.7
Operator:Western Australian Government Railways
Fleetnumbers:Dd591-Dd600
Nicknames:Donald Ducks
Preservedunits:Dd592, Dd596
Disposition:2 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.

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. 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they did on occasions work to Bunbury on the South Western and Merredin on the Eastern lines.[1] [2] [3] The first were withdrawn in 1969, with the remainder in 1970/71 following the entry into service of the ADK/ADB class diesel multiple units.[1] [2]

Preservation

Two have been preserved:

Class list

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

Road
number
In serviceWithdrawnNotes
591
592Preserved at Western Australian Rail Transport Museum
593
594
595
596Preserved at Gosnells Railway Market
597
598
599
600

See also

References

Bibliography

Notes and References

  1. Book: Turner, Jim. Australian Steam Locomotives 1896-1958. 1997. Kangaroo Press. Kenthurst. 086417778X. 141.
  2. Book: Oberg, Leon. Locomotives of Australia 1850s-2010. 2010. Rosenberg Publishing. Dural. 9781921719011. 230–231.
  3. Book: Clark. Peter. The Australian Locomotive Guide. 2012. Rosenberg Publishing. Dural. 9781922013682. 46.
  4. Book: Whiteford. David. De Bruin. Charles. Watson. Lindsay. Watson. Neville. Western Australian Preserved Locomotives. 1983. Railmac Publications. Elizabeth. 0 949817 19 8. 7.
  5. http://www.railheritagewa.org.au/museum/locos/pages/d_steam.htm D and Dm Class Tank Locomotive
  6. http://www.australiansteam.com/Dd%20592.htm Dd592
  7. http://www.australiansteam.com/Dd%20596.htm Dd596