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CLASS  Q    2-4-4


Introduced: 1878 Number in Class: 2

Q Class Register





Locomotive Specifications

Builder:
  Rogers Locomotive Works, Paterson, New Jersey, USA

Engine Weight:    
29.0 tons
Tender Weight:     Total Weight:    29.0 tons Adhesive Weight:    
14.7 tons
Length over Buffers:     Total Wheelbase:    27' 7" Engine Wheelbase:    27' 7" Coupled Wheelbase:    
6' 0"
Tender Wheelbase:     Driver Wheel Dia.:    48" Cylinders HP:    
Two - 11" x 18"
Cylinders LP:    
Grate Area:    8.0 sq ft Evaporative Area:    
424 sq ft
Superheated Area:     Working Pressure:    
130 psig
Tractive Effort:    
4719 lbs f
Coal Capacity:    0.90 tons Oil Capacity:     Water Capacity:    800 gals

Remarks:     Originally built for the Rakaia and Ashburton Forks Railway. Taken over by NZR in 1881. A "Forney" type 32 ton well tank locomotive, they did not have a separate tender. Instead they carried the coal bunker and water tank on an extension of the main frame and were supported by a trailing bogie behind the cab. They were light and puny engines but quite nimble and proved useful on light, fast trains. However they did not last very long and were retired after 10 years.

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