| New South Wales Z24 class | |
|---|---|
| 2413 stands at Sydney station with an enthusiasts' special to Richmond on 26 November 1960 | |
| Power type | Steam |
| Builder | Dübs and Company |
| Build date | 1889 |
| Total produced | 25 |
| Configuration | 2-6-0 |
| UIC classification | 1'Cn |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Driver diameter | 4 ft 0 in (1.219 m) |
| Weight on drivers | 84,000 lb (38 t) |
| Locomotive weight | 104,000 lb (47 t) |
| Boiler pressure | 140 psi (1.0 MPa) |
| Firegrate area | 21 sq ft (2.0 m2) |
| Heating surface: Total |
1,410 square feet (131 m2) |
| Superheater type | None |
| Cylinders | Two, outside |
| Cylinder size | 18 × 26 in (457 × 660 mm) |
| Tractive effort | 20,855 lbf (92.77 kN) |
| Factor of adhesion |
4.00 |
| Career | New South Wales Government Railways |
| Class | B55; Z24 from 1924 |
| Retired | 1929–1960 |
| Disposition | Four preserved, remainder scrapped. |
The Z24 class was a class of 2-6-0 wheel arrangement steam locomotive built for and operated by the New South Wales Government Railways of Australia.
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Following the success of the B205-class, the N.S.W.G.R. ordered in 1889 an additional 25 locomotives of a basically similar design from Dübs and Company. These locomotives had a deeper firebox than their earlier cousins and were fitted with a steel-sided cab.[1] They were pooled with the B205-class in general working. The first locomotive entered traffic on 10 March 1891 and all were in service by August that year.
They took a generally unobtrusive part in main-line goods traffic until displaced by the various 2-8-0 ‘standard goods’ locomotives. The lighter branch lines were then their domain, but were subsequently displaced by the C30T class locomotives which arrived in the mid-1920s. As boiler renewals became due between 1929 and 1960, their numbers were depleted through either scrapping or disposal. Representatives found their way on to the private lines of such organisations as Bunnerong Power House, Nepean Sand & Gravel at North Richmond and Hunter Valley collieries.
The last of the N.S.W.G.R. locomotives to be withdrawn was 2413 in November, 1960, following an enthusiast tour to Richmond. It joined two of its sisters at Bunnerong Powerhouse until 1975.
Locomotives 2408 and 2414 are now with the Dorrigo Steam Railway and Museum. 2413 was preserved by Australian Railway Historical Society A.C.T. Division but resides at Junee Roundhouse, and 2419 is preserved by the New South Wales Rail Transport Museum, but displayed at Goulburn Roundhouse.[2]
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