JNR C11 Class Steam Locomotive
As an improved and expanded version of the type C10, 381 type C11s were manufactured at Kisha Seizo, Hitachi, Nippon Sharyo, and Kawasaki from 1932 to 1947. Additionally, 20 trains were manufactured for private railways. From around the time this locomotive was designed, welding as a construction method was established, replacing riveted assembly, and its weight became lighter than that of the C10 type. Because of their good performance and the ease of backward operation due to them being tank locomotives (locomotives capable of carrying water and coal in the locomotive body), they were able to be used in a wider range of line sections. They were used all over Japan until 1975. Currently, 2 of them are in dynamic preservation at Oigawa Railways, 3 at Tobu Railways, and 1 at JR Hokkaido, while 45 of them are in static preservation.
Data of C11 Class
| Wheel arrangement | 2-6-4 | Driving Wheel Diameter(mm) | 1,520 |
|---|---|---|---|
| Loco. Weight in Working Order(t) | 65.85 | Maximum Axle Load(t) | 12.31 |
| Tender Weight in Working Order(t) | N/A | Boiler Pressure(kg/cm²) | 15.00 |
| Heating Surface Area(㎡) | 104.0 | Cylinder Dimensions(mm) | 450×610 |
| Grate Area(㎡) | 1.60 | Overall Length(mm) | 12,650 |
| Boiler Water Capacity (m³) | 3.8 | Total Height(mm) | 3,900 |
| Loading Capacity of Water(m³) | 6.8 | Locomotive Length(mm) | N/A |
| Fuel Capacity(t) | 3.0 | Tender Length(mm) | N/A |
| Weight on Driving Wheels(t) | 36.69 | Boiler Center Height(mm) | 2,465 |