The NZR Q class were a pair of 2-4-4T type tank engines built by Rogers Locomotive and Machine Works in New Jersey. They were similar, in appearance, to the earlier K class of the same manufacturer and were purchased by the Rakaia & Ashburton Forks Railway Company[1] for working their newly constructed railway to Methven from Rakaia, which later became the Methven Branch.[2]

NZR Q Class (1878)
Type and origin
BuilderRogers
Build date1878
Total produced2
Specifications
Configuration:
 • Whyte2-4-4T
Gauge3 ft 6 in (1,067 mm)
Driver dia.48 in (1.219 m)
Adhesive weight14.2 long tons (14.4 t; 15.9 short tons)
Loco weight29 long tons (29.5 tonnes; 32.5 short tons)
Fuel typeCoal
Firebox:
 • Grate area8 sq ft (0.74 m2)
Boiler pressure130 lbf/in2 (896 kPa)
Heating surface424 sq ft (39.4 m2)
CylindersTwo, outside
Cylinder size11 in × 158 in (279 mm × 4,013 mm)
Performance figures
Tractive effort4,062 lbf (18.07 kN)
Career
OperatorsRakaia & Ashburton Forks Railway, NZR
ClassQ
Number in class2
Numbers17, 51
First runAugust 1879
Last run1897
DispositionBoth scrapped

See also

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References

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  1. ^ "RAKAIA AND ASHBURTON FORKS RAILWAY COMPANY (LIMITED)". Papers Past. The Star. Retrieved 6 October 2014.
  2. ^ Palmer & Stewart 1965, p. 46.

Bibliography

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