NZR J class (1939)

NZR J class
J 1211 being serviced before departure from Napier in 2002.
Type and origin Power type Steam Builder North British Locomotive Company, Scotland Serial number 24523–24562[1] Build date 1939
Specifications Configuration: ​  • Whyte 4-8-2 Gauge 3 ft 6 in (1,067 mm) Wheel diameter 54 in (1.372 m) Wheelbase 34 ft 10 in (10.62 m) Length 66 ft 11 in (20.40 m) Adhesive weight 44.45 long tons (45.16 t; 49.78 short tons) Loco weight 68.55 long tons (69.65 t; 76.78 short tons) Tender weight 40.35 long tons (41.00 t; 45.19 short tons) Total weight 108.9 long tons (110.6 t; 122.0 short tons) Fuel type Coal (J). Oil (JB)[n 1] Fuel capacity 6.0 long tons (6.1 t; 6.7 short tons) Water cap. 4,000 imp gal (18,000 L; 4,800 US gal) Firebox: ​  • Grate area 39.0 square feet (3.6 m2) Boiler pressure 200 psi (1,400 kPa) Heating surface 1,469 square feet (136.5 m2) Superheater: ​  • Heating area 283 square feet (26.3 m2) Cylinders 2 Cylinder size 18 in × 26 in (457 mm × 660 mm) Valve gear Baker
Performance figures Tractive effort 24,960 lbf (111.0 kN)
Career Number in class 40 Numbers 1200 - 1239 Locale All of New Zealand First run 1939 - 1940 Last run 1964 - 1967 Retired 1964 - 1971 Scrapped 1969 - 1971 Current owner Ian Welch, Steam Incorporated Disposition Three preserved, twelve rebuilt as JB class, remainder scrapped.

The NZR J class was a class of forty 4-8-2 steam locomotives operated by the New Zealand Railways Department (NZR). Although designed to work on the lighter secondary lines, the class was frequently used on mainline express passenger trains as well as freight.^[2] When first introduced, the class boasted distinctive streamlining, which was later removed from 1947 onwards for maintenance reasons.^[2] Three of this class remained in service until the end of steam operation on 26 October 1971, when they were withdrawn and entered into preservation. This class should not be confused with the earlier J class from 1874.

Cite error: There are <ref group=n> tags on this page, but the references will not show without a {{reflist|group=n}} template (see the help page).