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JNR's steam locomotive C57 class

C57.jpg / 28KBytes
C57 110 May 1972 Iseshi Station
This locomotive type is a passenger locomotive for sub-trunk line, built as a locomotive to improve and augment the type C55. From 1937 to 1946, 201 were built by Kisha-Seizo, Kawasaki, Hitachi, and Mitsubishi. From this type, the driving wheels are boxpok driving wheels (wheels with a hollow structure). During the Pacific War, production was discontinued from 1942 in order to increase the production of locomotives for freight trains. However, on the contrary, after the war, demand for passenger trains increased, so they were manufactured again in 1946. The fourth batch of this type, the last group manufactured, was very different in appearance and dimensions, looking more like the type C61. In 1943, Kawasaki and Hitachi built 6 of this type for use on the Railway of the Governor-General of Taiwan during the Japanese colonial period. After the Pacific War renamed Taiwan Railway Administration (TRA) CT270 class. In 1953, 8 of them were manufactured by Hitachi with the assistance of the United States and were used for the Republic of China’s National Railways (TRA) after the war. This was the last new Japan National Railways (JNR) steam locomotive to be manufactured. In Japan, it was used primarily for passenger service until 1975, and was the last form of steam locomotive to pull JNR passenger trains. Currently, JR West and JR East are each dynamically preserving 1 of this type (refers to locomotives that have been preserved in a ready-to-operate state, and/or are still running today), and the Taiwan Railways Administration is dynamically preserving 1 too. Additionally, there are 27 in Japan and 3 in Taiwan that have been 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).

Data of C57 class
Whell arrangement 4-6-2 Heating Surface(m2) 168.80
Loco. Weight in Working Order(t) 67.50 Capacity of Boiler Water(m3) 6.00
Weight on Driving Wheels(t) 41.32 Loading Capacity of Water(m3) 17.0
Tender Weight in Working Order(t) 48.00 Loading Capacity of Coal(t) 12.0
Max Axle Weight(t) 13.96 Height of Boiler Cube center(mm) 2,400
Diameter of Driving Wheel(mm) 1,750 Length(mm) 20,380
Cylinder Dimensions(mm) 500X660 Height(mm) 3,945
Boiler Pressure(kg/cm2) 16.00 Length of Locomotive(mm) 12,960
Grate Area(m2) 2.53 Length of Tender(mm) 7,320
Gauge 1,067mm(3'6")

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