NZR Q Class (1878)
Type and origin Builder Rogers Build date 1878 Total produced 2
Specifications Configuration: ​  • Whyte 2-4-4T Gauge 3 ft 6 in (1,067 mm) Driver dia. 48 in (1.219 m) Adhesive weight 14.2 long tons (14.4 t; 15.9 short tons) Loco weight 29 long tons (29.5 tonnes; 32.5 short tons) Fuel type Coal Firebox: ​  • Grate area 8 sq ft (0.74 m2) Boiler pressure 130 lbf/in2 (896 kPa) Heating surface 424 sq ft (39.4 m2) Cylinders Two, outside Cylinder size 11 in × 158 in (279 mm × 4,013 mm)
Performance figures Tractive effort 4,062 lbf (18.07 kN)
Career Operators Rakaia & Ashburton Forks Railway,NZR Class Q Number in class 2 Numbers 17, 51 First run August 1879 Last run 1897 Disposition Both scrapped

TheNZR Q class were a pair of2-4-4T type tank engines built byRogers Locomotive and Machine Works inNew Jersey. They were similar, in appearance, to the earlierK class of the same manufacturer and were purchased by the Rakaia & Ashburton Forks Railway Company^[1] for working their newly constructed railway toMethven fromRakaia, which later became theMethven Branch.^[2]

• NZR Q class (1901)
• Locomotives of New Zealand

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