JGR Class 5100

The JGR Class 5100 (5100形) was a type of 4-4-0 steam locomotive used on Japanese Government Railways. The two locomotives, numbered 18 and 20, were built by Kitson and Company in the United Kingdom in 1874 as 0-6-0 locomotives of the later JGR Class 7010. They were rebuilt into 4-4-0 wheel arrangement passenger locomotives at Kobe in 1876. In 1909, the two locomotives were classified Class 5100, becoming numbers 5100 and 5101.

Class 5100
Locomotive No. 18 before being classified Class 5100
Type and origin Reference: Power type Steam Builder Kitson and Company Build date 1874 Total produced 4 Rebuilder Kobe Rebuild date 1876 Number rebuilt 2
Specifications Configuration: ​  • Whyte 4-4-0 Gauge 1,067 mm (3 ft 6 in) Leading dia. 813 mm (2 ft 8.0 in) Driver dia. 1.372 m (4 ft 6.0 in) Wheelbase 5.435 m (17 ft 10.0 in) Length 13.115 m (43 ft 0.3 in) Loco weight 26 t Firebox: ​  • Grate area 1.1 m2 (12 sq ft) Boiler pressure 9.5 kg/cm2 (135 lbf/in2) Heating surface 75.9 m2 (817 sq ft) Cylinders Two Cylinder size 35.6 cm × 50.8 cm (14 in × 20 in)

See also

• Japan Railways locomotive numbering and classification