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New South Wales class T.524
later class D50
Australia | 1896 | 280 produced
archive NSWGR

Over a period from 1896 to 1916, the NSWGR received a total of 280 Consolidations of the class T.524, designated D50 from 1924. They were described as a successful combination of the features of American and British locomotive design. Most were built by British companies, except for 30 by Clyde Engineering.

Ten which were under construction at North British during the First World War were initially used by Great Britain in the war. Since the NSWGR refused to accept the worn-out machines after the war, they ultimately ended up with Nord-Belge. The Commonwealth Railways used eight identically locomotives as class K.

They had a typically British-looking boiler with a Belpaire firebox. To make it easier to run through curves, the wheels on the second and third driving axles had no wheel flanges. The last 75 locomotives were built directly with a superheater and showed such good results that many of the existing ones were also retrofitted.

They were now the NSWGR's ultimate standard freight locomotive. Despite their age, it took a long time for their number to decrease significantly. In 1954 there were still 220 in use and in 1964 there were still 113, but increasingly in shunting service. Some even got automatic couplers for this task from 1960 onwards. They disappeared from active service in the 1970s and four remain today, none of which are operational.

Variantas builtsuperheated
General
Built1896-19161939
ManufacturerBeyer, Peacock & Co., Dübs & Co., Neilson & Co., North British, Clyde EngineeringNSWGR
Axle config2-8-0 (Consolidation) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase23 ft
Fixed wheelbase15 ft
Service weight145,936 lbs159,824 lbs
Adhesive weight133,168 lbs144,368 lbs
Total weight238,896 lbs303,184 lbs
Axle load34,720 lbs38,864 lbs
Water capacity4,383 us gal4,756 us gal
Fuel capacity13,440 lbs (coal)29,120 lbs (coal)
Power
Power sourcesteam
Estimated power775 hp (578 kW)1,050 hp (783 kW)
Optimal speed16 mph32 mph
Starting effort30,576 lbf20,651 lbf
Power Plant
Driver diameter51 in
Boiler pressure160 psi
Expansion typesimple
Cylinderstwo, 21 x 26 intwo, 22 x 16 in
Boiler
Grate area29.8 sq ft28.7 sq ft
Firebox area166 sq ft179 sq ft
Tube heating area2,032 sq ft1,574 sq ft
Evaporative heating area2,198 sq ft1,753 sq ft
Superheater area364 sq ft
Total heating area2,198 sq ft2,117 sq ft
Calculated Values
steam locomotive
freight
last changed: 01/2024
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