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New Zealand Railways class C (1930)
New Zealand | 1930 | 24 produced
C 851 around 1930
C 851 around 1930
Albert Percy Godber / Godber Collection, Alexander Turnbull Library

When the trains became heavier and heavier, the NZR developed a powerful shunting locomotive as a tender locomotive. In order to keep the axle load low and to enable sufficiently large driving wheels for occasional use in front of passenger trains, the class WF 2-6-4T tank locomotive was used as the basis and the second trailing axle was removed. After the class C had become too light for the ever heavier trains, it was also used for suburban trains. Half of the locomotives were retired between 1964 and 1968.

General
Built1930-1931
ManufacturerHillside, Hutt
Axle config2-6-2 (Prairie) 
Gauge3 ft 6 in (Cape gauge)
Dimensions and Weights
Length54 ft 5 15/16 in
Wheelbase23 ft 9 in
Fixed wheelbase10 ft
Total wheelbase45 ft 10 in
Service weight87,920 lbs
Adhesive weight58,127 lbs
Total weight148,960 lbs
Water capacity2,400 us gal
Fuel capacity8,400 lbs (coal)
Power
Power sourcesteam
Estimated power900 hp (671 kW)
Optimal speed35 mph
Starting effort16,290 lbf
Power Plant
Driver diameter45 in
Boiler pressure200 psi
Expansion typesimple
Cylinderstwo, 14 x 22 in
Boiler
Grate area24 sq ft
Firebox area140 sq ft
Tube heating area646.3 sq ft
Evaporative heating area786.3 sq ft
Superheater area138 sq ft
Total heating area924.3 sq ft
Calculated Values
steam locomotive
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last changed: 04/2023
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