New South Wales Z23 class locomotive

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New South Wales Z23 Class
NSWGR O.446 Class Locomotive.jpg
O.446 Class Locomotive
Type and origin
Power type Steam
Builder Baldwin Locomotive Works[1]
Total produced 12[1]
Specifications
Configuration:
 • Whyte 4-6-0[1]
Gauge 4 ft 8 12 in (1,435 mm)[1]
Driver dia. 5 ft 1 in[1]
Total weight 90.37 tons[1]
Firebox:
 • Firegrate area
27.7 sq.ft[1]
Boiler pressure 160 lb [1]
Cylinder size 21 x 24[1]
Performance figures
Tractive effort 22,209 lb[1]
Career
Withdrawn 1933-1946
Disposition All scrapped

The Z23 class (formerly O.446 class) was a class of steam locomotives built for the New South Wales Government Railways in Australia.[2][3][4]

Royal Commission[edit]

These locomotives were said to be too heavy and too wide at the cylinders, and were the subject of a Royal Commission.[5]

Withdrawal[edit]

2305 was the first withdrawn in May 1933. By 1941 only six were left, with the last, 2304, being withdrawn in September 1946.[1] None has survived onto preservation.

See also[edit]

References[edit]

  1. ^ a b c d e f g h i j k Oberg, Leon (1975). Locomotives of Australia. p. 73. ISBN 0 589 07173 4. 
  2. ^ Preston, Ron G (1984). Tender into Tank. Sydney: New South Wales Rail Transport Museum. pp. 11–57. ISBN 0 909862 18 4. 
  3. ^ Grunbach, Alex (1989). A Compendium of New South Wales Steam Locomotives. Sydney: Australian Railway Historical Society, NSW Division. pp. 41–45. ISBN 0 909650 27 6. 
  4. ^ New South Wales Railways 1855-1955. Published by Department of Railways
  5. ^ "BALDWIN ENGINE COMMISSION". The Sydney Morning Herald. National Library of Australia. 26 May 1892. p. 6. Retrieved 27 October 2014.