JGR Class 3500

JGR Class 3500
3501 at an unknown date
Technical specifications
Manufacturer(s)	JGR's Kobe Works, JGR's Shimbashi Works, JGR's Takatori Works
Build date	1910 – 1911
Total produced	5
Classification	2-6-4T
Dimensions	12,548 mm × Unknown × 3,810 mm
Rail gauge	3 ft 6 in (1,067 mm)
Valve gear	Stephenson
Cylinders	4
Boiler pressure	11.2 kg/cm²
Fuel type	Coal
Heating area	92.9 m²
Service information
Years in-service	1910 – 1922
Running numbers	3500 – 3504
Disposition details
Preserved	None
Number scrapped	5

The JGR Class 3500 was a 2-6-4T Adriatic-type side tank Vauclain compound steam locomotive operated by the Japanese Government Railways from 1910 to 1922.

History

The Class 3500 was an early steam locomotive operated in Japan. The type was a modification of various JGR Class 2100 locomotives. A total of five locomotives were modified at JGR's Kobe, Shimbashi and Takatori Works; these were the first conversions of the Class 2100 locomotives. It is speculated that Hikomatsu Iwasaki, an engineer for the JGR specializing in steam compounding, was heavily involved in the locomotive's design.

The locomotives were largely used around the Kinki and Chūgoku regions. The locomotives had a short service life, with all retired by 1922 as compound locomotives were regarded as troublesome to maintain. No Class 3500s have been preserved.