The Z29 class (formerly J.483 class) was a class of steam locomotives built for the New South Wales Government Railways in Australia for transport and goods transport up the steep gradients of rail track in the Blue Mountains.[2][3][4]

New South Wales Z29 Class
J.483 (Z29) Class Locomotive
Type and origin Power type Steam Designer Baldwin Locomotive Works Builder Baldwin Locomotive Works Total produced 20[1]
Specifications Configuration: ​  • Whyte 2-8-0[1] Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge[1] Driver dia. 4 ft 3 in (1,295 mm) Total weight 100.6 long tons (112.7 short tons; 102.2 t)[1] Firebox:  • Firegrate area 32 sq ft (3.0 m2)[1] Boiler pressure 150 psi (1,034 kPa) 140 psi or 965 kPa superheated[1] Cylinders 2 (501, 502 with 4 until 1896)[1] Cylinder size 21 in × 26 in (533 mm × 660 mm) superheated 22 in × 26 in (559 mm × 660 mm)[1]
Performance figures Tractive effort 26,979 lbf (120.01 kN) 29,363 lbf (130.61 kN) superheated[1]
Career Number in class 20[1] Numbers 483-502 (1889 system); 2901-2920 (1924 system, some not renumbered)[1] First run 30 September 1891, all in service within two months[1] Retired 2918 in April 1935[1] Scrapped December 1937[1] Disposition All scrapped

Gallery

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  Class Z2907 (J483) locomotive

See also

• NSWGR steam locomotive classification

References

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