New South Wales Z29 class locomotive

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: ​  • Grate 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

The Z29 class (formerly J.483 class) was a class of steam locomotives built for the New South Wales Government Railways in Australia. They were used principally for goods transport up the steep gradients of rail track in the Blue Mountains, but also served on the Main South as far as Junee, the South Coast line as far as Waterfall and on Western lines as far as Mudgee and Wellington. Their introduction required cutting back some platforms as well as flattening their cylinder sides to achieve clearances. Over the years they lost some of their distinctive Baldwin appearance with reboilering with Belpaire boilers and acquisition of standard NSWGR chimneys and smokeboxes. The last two members of the class (501 and 502) were delivered as 4 cylinder Vauclain compounds. The last withdrawn was 500 (by then 2918) in April 1935, scrapped at Chullora in November 1937. ^{[2] [3] [4] [5]}

Gallery

• 
  Class Z2907 (J483) locomotive

See also

• NSWGR steam locomotive classification

References

1. Oberg, Leon (1975). Locomotives of Australia. p. 74. ISBN   0-589-07173-4.
2. GH Eardley (1976). Locomotives Beyond Recall. Sydney: New South Wales Rail Transport Museum. ISBN   0-909862-18-4.
3. Preston, Ron G (1984). Tender into Tank. Sydney: New South Wales Rail Transport Museum. pp. 11–57. ISBN   0-909862-08-7.
4. 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.
5. New South Wales Railways 1855-1955. Published by Department of Railways