New South Wales Z23 class locomotive

New South Wales Z23 Class
O.446 Class Locomotive
Type and origin Power type Steam Builder Baldwin Locomotive Works [1] Build date 1891 Total produced 12 [1]
Specifications Configuration: ​  •  Whyte 4-6-0 [1] Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge [1] Driver dia. 5 ft 1 in (1,549 mm) [1] Total weight 90.37 long tons (101.21 short tons; 91.82 t) [1] Firebox: ​  • Grate area 27.7 sq ft (2.57 m2) [1] Boiler pressure 160 psi (1,100 kPa) [1] Cylinder size 21 in × 24 in (533 mm × 610 mm) [1]
Performance figures Tractive effort 22,209 lbf (98.79 kN) [1]
Career Withdrawn 1933-1946 Disposition All scrapped

The Z23 class (formerly O.446 class) was a class of steam locomotives built in 1891 for the New South Wales Government Railways in Australia. ^{[2] [3] [4]}

Royal Commission

Although this may have been the result of a contemporary anti-American bias, these locomotives were said to be too heavy and too wide at the cylinders, and were the subject of a Royal Commission. ^[5]

Withdrawal

2305 was the first withdrawn in May 1933. By 1941, only six were left, with the last, 2304, being withdrawn in September 1946.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

• NSWGR steam locomotive classification

References

1. 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.