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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 type Steam Builder Baldwin Locomotive Works Total produced 10[1]
Specifications Configuration: ​  • Whyte 2-6-0[1] Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge[1] Driver dia. 5 ft 1 in (1,549 mm)[1] Boiler pressure 140 psi (965 kPa)[1] Cylinder size 18 in × 26 in (457 mm × 660 mm)[1]
Performance figures Tractive effort 15,467 lbf (68.80 kN)[1]
Career First run March 1885[1] Disposition All scrapped by 1941[1]

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.^{[citation needed]} This arrangement is commonly called a Mogul.[5]^{[citation needed]}

History

The last engine was scrapped in 1941.[1]

See also

• NSWGR steam locomotive classification

References

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