New South Wales Z21 class locomotive

The Z21 class (formerly L.304 class) was a class of steam locomotives built for the New South Wales Government Railways in Australia.[2][3][4]

New South Wales Z21 Class
L.304 Class Locomotive
Type and origin
Power typeSteam
BuilderBaldwin Locomotive Works
Total produced10[1]
Specifications
Configuration:
​
 • Whyte2-6-0[1]
Gauge4 ft 8 1⁄2 in (1,435 mm) standard gauge[1]
Driver dia.5 ft 1 in (1,549 mm)[1]
Boiler pressure140 psi (965 kPa)[1]
Cylinder size18 in × 26 in
(457 mm × 660 mm)[1]
Performance figures
Tractive effort15,467 lbf (68.80 kN)[1]
Career
First runMarch 1885[1]
PreservedNone[1]
ScrappedAll by 1941[1]
DispositionScrapped

Wheel arrangement

The wheel arrangement for the Z21 class was 2-6-0. Under the Whyte notation for the classification of steam locomotives, 2-6-0 represents the wheel arrangement of two leading wheels on one axle, usually in a leading truck, six powered and coupled driving wheels on three axles and no trailing wheels. This arrangement is commonly called a Mogul.[5]

History

The last engine was scrapped in 1941.[1]

2-6-0 Wheel arrangement. Front of locomotive to the left.

See also

References
  1. Oberg, Leon (1975). Locomotives of Australia. p. 54. 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. "American Steam Locomotive Wheel Arrangements". www.steamlocomotive.com. Retrieved 25 October 2016.



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