JGR Class 3900

Class 3900
File:JGR-3900SL.jpg 3900 type locomotive
Type and origin Reference: Power type Steam Builder Maschinenfabrik Esslingen Build date 1892 Total produced 7
Specifications Configuration: ​  • Whyte 0-6-0T Gauge 1,067 mm (3 ft 6 in) Driver dia. 900 mm (2 ft 11 in) Wheelbase 3.6 m (11 ft 10 in) Length 9.1 m (29 ft 10 in) Loco weight 35.5 t Fuel type Coal with heavy oil Fuel capacity 1 t Water cap. 3.5 m3 (925 US gal) Firebox: ​  • Grate area 1.73 m2 (19 sq ft) Boiler pressure 176.5 lbf/in2 (12.41 kg/cm2) Heating surface 75 m2 (807 sq ft) Cylinders Two Cylinder size 39 cm × 50 cm (15 in × 20 in) Valve gear Walschaerts
Career Retired 1922 Disposition All scrapped

The JGR Class 3900 was a type of 0-6-0T steam locomotive used on Japanese Government Railways. The locomotives were imported from Germany for the 11.2 km (7.0 miles) Abt rack railway system which traversed the Usui Pass on the Shin'etsu Main Line between Yokokawa Station in Annaka, Gunma and Karuizawa Station in Karuizawa, Nagano.

See also

• Japan Railways locomotive numbering and classification