JGR Class 8100

JGR Class 8100
8100 at an unknown date
Technical specifications
Serial number(s)	15881 – 15900
Manufacturer(s)	Baldwin Locomotive Works
Build date	1897
Total produced	20
Classification	2-6-0
Dimensions	14,402 mm × 2,381 mm × 3,594 mm
Rail gauge	3 ft 6 in (1,067 mm)
Valve gear	Stephenson
Cylinders	2
Boiler pressure	9.8 kg/cm²
Fuel type	Coal
Heating area	106.6 m²
Service information
Years in-service	1897 – 1951
Running numbers	8100 – 8119 (originally 272 – 291)
Disposition details
Preserved	None
Number scrapped	20

The JGR Class 8100 (originally the JGR Class AQ) was a 2-6-0 Mogul-type steam locomotive operated by the Japanese Government Railways from 1897 to 1951.

History

The Class 8100 was an early steam locomotive operated in Japan. The type was ordered by the JGR, with a total of twenty locomotives manufactured by the Baldwin Locomotive Works in 1897. These were classified as the Class AQ locomotives and numbered 272 through 291. These were later reclassified as the Class E7 with their numbers unchanged.

The locomotives were reclassified as the Class 8100 in 1909 when a formal rule regarding standardized classification of locomotives was enacted; the locomotives were thus renumbered 8100 through 8119. The locomotives were initially used from Yamakita to Numazu on the Tōkaidō Line, but all were moved to Hokkaido afterwards. The locomotives had a long service life, with the last JGR locomotives retiring in 1951; subsequently some locomotives were sold to private and industrial railroads, where they were used until the 1960s. No Class 8100s have been preserved.

Trivia

• Baldwin's model number for this locomotive was 8-28-D.