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New South Wales Z17 class locomotive

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New South Wales Z17 class
Class Z17 Locomotive in service
Type and origin
Power typeSteam
BuilderVulcan Foundry
Serial number1164–1175
Build date1886
Total produced12
Specifications
Configuration:
​
 • Whyte4-4-0
 • UIC2'Bn
Gauge4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.5 ft 6 in (1,676 mm)
Adhesive weight64,000 lb (29,030 kg)
Loco weight95,000 lb (43,091 kg)
Water cap.2,500 imp gal
(11,365 L; 3,002 US gal)
Firebox:​
 • Grate area20 sq ft (1.9 m2)
Boiler pressure140 psi (970 kPa)
Heating surface1,285 sq ft (119.4 m2)
SuperheaterNone
CylindersTwo
Cylinder size19 in × 26 in (483 mm × 660 mm)
Train brakesair
Performance figures
Tractive effort16,920 lbf (75.3 kN)
Career
OperatorsNew South Wales Government Railways
ClassH373 (Z17 from 1924)
NumbersH373-H384 (1701-1712 from 1924)
Retired1934–1974
Disposition1 preserved, 11 scrapped

The 17 class (formally H.373 class) was a class of steam locomotive built by the Vulcan Foundry for the New South Wales Government Railways of Australia.[1][2][3]

History

Ordered from the Vulcan Foundry, 12 were placed in service in 1887. They had the 4-4-0 wheel arrangement that most locomotives had at the time. Shortly after delivery, the class leader was tested against the Baldwin Locomotive Works built L304 class to see which one could make a faster and better run across the Blue Mountains to Eskbank, with the Baldwin locomotive judged superior. They were also intended to haul passenger service on the steeply graded Sydney to Newcastle and Kiama lines.[4]

They proved unpopular with both locomotive crews because of rough riding and track maintenance staff because of their high axle load and were displaced from mainline working and relegated to branch line work following the arrival of the P6 class (C32 class). In 1905/06, new boilers with Belpaire fireboxes were fitted, the smokeboxes shortened and the cylinder diameter reduced.[2] In 1924, the class was renumbered becoming the Z17 class.

Demise and Preservation

As they became due for reboilering, they began to be withdrawn from January 1934 with only four in service by 1948.[5]

Preserved Z17 class locomotives
No. Description Manufacturer Year Current organisation Location Status Ref
1709 4-4-0 Passenger Vulcan Foundry 1887 Transport Heritage NSW Thirlmere Static

[6][7]

See also

References

  1. ^ Preston, Ron G (1984). Tender into Tank. Sydney: New South Wales Rail Transport Museum. pp. 11–57. ISBN 0 909862 18 4.
  2. ^ a b 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.
  3. ^ New South Wales Railways 1855-1955. Published by Department of Railways
  4. ^ Grunbach, Alex (1989). A Compendium of New South Wales Steam Locomotives. Sydney: Australian Railway Historical Society, NSW Division. p. 87. ISBN 0 909650 27 6.
  5. ^ Oberg, Leon (1984). Locomotives of Australia 1850's - 1980's. Frenchs Forest: Reed Books. p. 56. ISBN 0 730100 05 7.
  6. ^ Locomotive, steam 1709 Department of Heritage & Environment
  7. ^ "140th Celebrations Ready to Roll" Railway Digest October 1995 page 8

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