NZR N class

NZR N class
NZR N class in service for the Wellington and Manawatu Railway Company as number 9, c. 1900.
Type and origin Power type Steam Builder Baldwin Locomotive Works Build date 1885, 1891, 1901
Specifications Configuration: ​  • Whyte 2-6-2 Gauge 3 ft 6 in (1,067 mm) Driver dia. 49.125 in (1.248 m) Length 50 ft 2 in (15.29 m) (1891 batch) Adhesive weight 21 long tons (21 t; 24 short tons) Loco weight 31.8 long tons (32.3 t; 35.6 short tons) Tender weight 19.0 long tons (19.3 t; 21.3 short tons) Total weight 50.7 long tons (51.5 t; 56.8 short tons) (1891 batch) Fuel type Coal Fuel capacity 7.5 long tons (7.6 t; 8.4 short tons) Water cap. 5,000 imp gal (23,000 L; 6,000 US gal) Firebox: ​  • Grate area 16 sq ft (1.5 m2) Boiler pressure 135 psi (931 kPa) (1891 batch) Heating surface 853 sq ft (79.2 m2) Cylinder size 15 in × 20 in (381 mm × 508 mm)
Performance figures Maximum speed 103.6 km/h (64.4 mph)[1] Tractive effort 9,890 lbf (43.99 kN)
Career Operators Wellington and Manawatu Railway (2), New Zealand Government Railways (10) Number in class 12 Numbers 27, 30, 34, 36, 37, 42, 351-354, 453 (ex WMR No. 9), 454 (ex WMR No. 10) Locale Auckland, Hawke's Bay, Wellington (both NZR and WMR lines), Wairarapa, West Coast Retired November 1926 - March 1934 Current owner Wellington and Manawatu Railway Trust Disposition Withdrawn, one preserved

The N class were 12 steam locomotives that operated on the national rail network of New Zealand. They were built in three batches, including one batch of two engines for the private Wellington and Manawatu Railway Company, the WMR, by the Baldwin Locomotive Works in 1885, 1891, and 1901. Previously the N class designation had been applied between 1877 and 1879 to Lady Mordaunt, a member of the B class of 1874.^[2]