JNR Class C51

JGR/JNR Class C51 Central China Ry Pashina class (パシナ) China Railways SL9 (勝利9)
Preserved C51 5 at Ome Railway Park, May 2006
Type and origin Reference:[1] Power type Steam Builder Kisha Seizō, Mitsubishi, JNR - Hamamatsu Build date 1919-1928 Total produced 289
Specifications Configuration: ​  • Whyte 4-6-2 Pacific Gauge 1,067 mm (3 ft 6 in) Leading dia. 940 mm (3 ft 1 in) Driver dia. 1,750 mm (5 ft 9 in) Trailing dia. 940 mm (3 ft 1 in) Wheelbase 10 m (32 ft 10 in) Length 19.994 m (65 ft 7.2 in) Loco weight 69.6 t Total weight 113.8 t Fuel type Coal Fuel capacity 8 t Water cap. 17 m3 (4,491 US gal) Firebox: ​  • Grate area 2.53 m2 (27 sq ft) Boiler pressure 13 kg/cm2 (180 lbf/in2) Heating surface 127.4 m2 (1,371 sq ft) Superheater: ​  • Heating area 41.4 m2 (446 sq ft) Cylinders Two Cylinder size 53 cm × 66 cm (21 in × 26 in) Valve gear Walschaerts
Performance figures Maximum speed 99.1 km/h (61.6 mph)
Career Retired 1966 Disposition Four preserved (all in Japan), remainder scrapped

The Class C51 (C51形) is a type of 4-6-2 steam locomotive built by Kisha Seizo Mitsubishi and Japanese National Railways (JNR) Hamamatsu Works . The C classification indicates three sets of driving wheels. The C51 introduced 1.75 m (5 ft 9 in) diameter driving wheels to Japan. C51s raised the average speed on the Tōkaidō Main Line from 47.3 km/h (29.4 mph) to 55.3 km/h (34.4 mph). In 1930, a C51 hauled the first Tsubame (swallow) express, reducing travel time between Tokyo and Kōbe to 9 hours.^[1]