Queensland DD17 class locomotive

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Queensland Railways DD17 class
StateLibQld 1 73719 DD17 949 locomotive built in Ipswich between 1948 and 1952.jpg
Type and origin
Power type Steam
Designer Cyril Renton
Builder North Ipswich Railway Workshops
Serial number 199-210
Build date 1948-1952
Total produced 12
 • Whyte 4-6-4T
Gauge 1,067 mm (3 ft 6 in)
Driver dia. 4 ft 3 in (1,295 mm)
Loco weight 62 long tons (63 t; 69 short tons)
Fuel type Coal
Boiler pressure 180 psi (1,241 kPa)
Heating surface:
 • Firebox
18.5 sq ft (1.72 m2)
Cylinders 2 outside
Cylinder size 17 in (432 mm)
Performance figures
Tractive effort 10,648 lb (4,830 kg)
Operators Queensland Railways
Numbers 949-954, 1046-1051
Nicknames Blue Baby
Preserved 1046, 1047, 1049, 1051
Disposition 4 preserved, 8 scrapped

The Queensland Railways DD17 class locomotive was a class of 4-6-4T steam locomotives operated by the Queensland Railways.


With the D16 and D17 class locomotives becoming life expired, between 1948 and 1952, twelve DD17s were built at North Ipswich Railway Workshops. Per Queensland Railway's classification system they were designated the DD17 class, D representing they were a tank locomotive, and the 17 the cylinder diameter in inches.[1][2][3][4]

The first was painted black with red lining. The next five were painted blue and the last six midway blue. They operated suburban passenger trains in Brisbane out of Mayne depot, mostly on the northside. They also operated freight trains in the off-peaks.[1][2][3]


Four have been preserved:

  • 1046 by the Zig Zag Railway, Lithgow, NSW, having been operational between 1975 and the mid-1980s
  • 1047 is stored on the Zig Zag Railway having been operational between the 1970s and the mid-1990s
  • 1049 is operational on the Zig Zag Railway, it was restored to operation in 1994
  • 1051 is operational and part of the Queensland Rail Heritage Fleet, based at the Workshops Rail Museum


  1. ^ a b Armstrong, John (1994). Locomotives in the Tropics Volume 2. Brisbane: Australian Railway Historical Society. pp. 114–121. ISBN 9780909937263. 
  2. ^ a b Turner, Jim (1997). Australian Steam Locomotives 1896-1958. Kenthurst: Kangaroo Press. p. 155. ISBN 086417778X. 
  3. ^ a b Oberg, Leon (2010). Locomotives of Australia 1850s-2010. Dural: Rosenberg Publishing. pp. 233, 234. ISBN 9781921719011. 
  4. ^ Clark, Peter (2012). An Australian Locomotive Guide. Rosenberg Publishing. p. 47. ISBN 9781921719554. 

External links[edit]

Media related to Queensland DD17 class locomotives at Wikimedia Commons