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New Zealand Railways classes A and AD
New Zealand | 1906 | 58 produced
A 419 in the Petone depot
A 419 in the Petone depot
Albert Percy Godber / Godber Collection, Alexander Turnbull Library
General
Built1906-1914
ManufacturerAddington, A & G Price
Axle config4-6-2 (Pacific) 
Gauge3 ft 6 in (Cape gauge)
Dimensions and Weights
Length57 ft 2 in
Wheelbase27 ft 1 in
Fixed wheelbase10 ft
Service weight114,240 lbs
Adhesive weight74,144 lbs
Total weight171,360 lbs
Axle load25,200 lbs
Water capacity2,042 us gal
Fuel capacity8,960 lbs (coal)
Power
Power sourcesteam
Estimated power1,000 hp (746 kW)
Optimal speed40 mph
Starting effort16,041 lbf
with start valve19,249 lbf
Power Plant
Driver diameter54 in
Boiler pressure225 psi
Expansion typecompound
Cylindersfour, HP: 12 x 22 in
and LP: 19 x 22 in
Boiler
Grate area30 sq ft
Firebox area99 sq ft
Tube heating area1,625 sq ft
Evaporative heating area1,724 sq ft
Total heating area1,724 sq ft
Calculated Values
steam locomotive
passenger
De Glehn compound
last changed: 08 2023
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