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JNR E10 Class Steam Locomotive

JNR steam locomotive E10 class
E10 2 Nov. 2005 Ome Railway Park

When this locomotive type was manufactured in 1947, just after Japan suffered defeat in the Pacific War, heavy industry had been devastated, so the General Headquarters of the Allied Powers had prohibited the production of new locomotives. However, the type 4110s used on the sloped section of the track were aging, so the type E10s were allowed as replacements, and 5 were manufactured at Kisha Seizo. It was the last new steam locomotive of the Japan National Railways (JNR) type and the largest tank locomotive in the country. They were initially used for the sloped section from Fukushima to Yonezawa of the Ou Line until that section was electrified. After that they were used on the sloped section of the Hisatsu Line and Hokuriku Main Line. The final ones were used until 1963 as a connection for the AC‐DC dual current electrified section from Maibara to Tamura. Currently, there is 1 of this type still in existence statically preserved (refers to locomotives that are preserved in a way that does not allow them to be immediately operated, and/or that are simply on display) at Ome Railway Park.

Data of E10 Class

Wheel arrangement2-10-0Diameter of Driving Wheel(mm)1,250
Loco. Weight in Working Order(t)102.1Maximum Axle Load(t)14.24
Tender Weight in Working Order(t)N/ABoiler Pressure(kg/cm²)16.00
Heating Surface Area(㎡)223.10Cylinder Dimensions(mm)550×660
Grate Area(㎡)3.30Overall Length(mm)14,450
Boiler Water Capacity (m³)8.6Total Height(mm)3,982
Loading Capacity of Water(m³)8.0Locomotive Length(mm)N/A
Fuel Capacity(t)4.0Tender Length(mm)N/A
Weight on Driving Wheels(t)70.47Boiler Center Height(mm)2,580