- New South Wales Z27 class locomotive
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New South Wales Z27 class 2705 on an enthusiast special along the Metropolitan Goods Line at Dulwich Hill on 20 November 1965 Power type Steam Builder Hunslet Engine Company Build date 1913 Total produced 8 Configuration 2-6-0 UIC classification 1′Cn Gauge 4 ft 8 1⁄2 in (1,435 mm) Driver diameter 4 ft ½ in (1.232 m) Length 54 ft 4 7⁄8 in (16.58 m) Axle load 12 tons 15 cwt (28,600 lb or 13.0 t) Weight on drivers 36 tons 8 cwt (81,500 lb or 37.0 t) Locomotive weight 45 tons 2 cwt (101,000 lb or 45.8 t) Locomotive & tender
combined weight80 tons 7 cwt (180,000 lb or 81.6 t) Fuel type Coal Fuel capacity New: 5 tons 10 cwt (12,300 lb or 5.6 t) Water capacity New: 2,150 imperial gallons (9,800 l; 2,580 US gal) Boiler pressure New: 160 psi (1.10 MPa),
Dec. 1921: 150 psi (1.03 MPa)Firegrate area 21 sq ft (2.0 m2) Heating surface:
Total1,240 sq ft (115 m2) Superheater type None Cylinders Two, outside Cylinder size 18 × 24 in (457 × 610 mm) Valve gear Walschaerts Valve type Slide valves Tractive effort New: 20,660 lbf (91.9 kN),
Dec. 1921: 19,240 lbf (85.6 kN)Factor of
adhesionNew: 3.97,
Dec. 1921: 4.24Career New South Wales Public Works Department;
New South Wales Government RailwaysClass G1204; Z27 from 1924 Number 1204–1211; 2701–2708 from 1924 Retired 1957–1966 Disposition One preserved, remainder scrapped. The Z27 class is a class of steam locomotive built for and operated by the New South Wales Government Railways of Australia.
History
These eight small 'Mogul' type locomotives were built by the Hunslet Engine Company of Leeds, England, in 1913 for the Public Works Department as railway construction locomotives, working on such lines as Coffs Harbour to Glenreagh, Glenreagh to Dorrigo and Humula to Tumbarumba.
When the New South Wales Government Railways became the constructing authority in 1917, these locomotives were taken over and received the road numbers 1204-1211 of the (G)1204-class. These locomotives were considered too modern to be utilised on construction work and were soon transferred to more demanding duties. However they were found to be unsuitable for working lines which abounded in curves, having a tendency to shed their valve motion on anthing other than the straightest of track! They were transferred to Narrabri West where they stayed for practically the whole of their remaining lives, working to such places as Moree, Pokataroo, Walgett, Mungindi and Boggabilla.
The mid-1950s saw the withdrawal of two of the class and a further four went in 1963. 2707 was the last to go in 1966, leaving 2705 to be retained by the New South Wales Rail Transport Museum.
References
- Grunbach, Alex. (1989). A Compendium of New South Wales Steam Locomotives. Australian Railway Historical Society NSW Division. ISBN 0-909650 27 6.
- Smith, J.D.H.. "New South Wales Government Railways steam locomotives". http://orion.math.iastate.edu/jdhsmith/term/slaunsw.htm. Retrieved 15 2008.
Sydney and New South Wales Rail Rollingstock NSWGR steam locomotive X10 class • Z11 class • Z12 class • Z13 class • Z14 class • Z15 class • Z16 class • Z17 class • Z18 class • Z19 class • Z20 class • Z21 class • Z23 class • Z24 class • Z25 class • Z26 class • Z27 class (2705) • Z28 class • Z29 class • C30 class (3112) • C30T class (3016T) • C32 class (3237) (3265) • C34 class • C35 class (3526) • C36 class (3642) • C38 class (3801) (3820) (3830) • D50 class • D53 class • D55 class • D57 class • D58 class • D59 class (5917) • AD60 classNSW Private Steam SMR10 classDiesel locomotive Electric locomotive Electric multiple unit U set • L, R, and S sets • K set • C set • V set • T & G sets (Tangara) • M set (Millennium) • H set (OSCARs) • A set (Waratah)Diesel railcar This steam locomotive-related article is a stub. You can help Wikipedia by expanding it.