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JNR Class C55

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JNR Class C55
Taiwan Railways Class CT250
Preserved C55 1 in May 2006
Type and origin
Power typeSteam
DesignerHideo Shima
BuilderKawasaki Heavy Industries Rolling Stock Company, Kisha Seizo, Hitachi
Build date1935-1937
Total produced62 (JNR C55) 9 (TRA CT250)
Specifications
Configuration:
 • Whyte4-6-2 Pacific
Gauge1,067 mm (3 ft 6 in)
Driver dia.1,750 mm (5 ft 9 in)
Length20,380 mm (66 ft 10 in)
Height3,945 mm (12 ft 11.3 in)
Loco weight66.04 t (65.00 long tons; 72.80 short tons)
Total weight113.22 t (111.43 long tons; 124.80 short tons)
Fuel typeCoal
Boiler pressure14 kg/cm2 (1.37 MPa; 199 psi)
Cylinders2
Cylinder size510 mm × 660 mm (20 in × 26 in)
Valve gearWalschaerts
Performance figures
Maximum speed100 km/h (62 mph)
Career
OperatorsJNR
Taiwan Railways
Number in classJNR: 62
TRA: 9
NumbersC55 1-C55 62 (JNR) CT251-CT259 (TRA)
Retired1975 (Japan) 1982 (Taiwan)
Preserved4 (Japan) 2 (Taiwan)
Scrapped1975 (Japan) 1982 (Taiwan)
DispositionFour preserved in Japan, two preserved in Taiwan, remainder scrapped

The Class C55 (C55形) is a type of 4-6-2 steam locomotive built in Japan from 1935 to 1937. A total of 62 Class C55 locomotives were built and designed by Hideo Shima.[1]

Nine were supplied to the Taiwan Government Railway, where they became class CT250 after the nationalist takeover of Taiwan in 1945 and remained in service until October 1982. 21 locomotives numbered C55 20 - C55 40 were built as streamliners during the 1930s and 40s.

Design

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C55 21, one of the streamlined C55s

The Class C55 was designed in the 1930s as a successor to the Class C51 operated on routes connecting mid-sized cities (mainline successor to them was the Class C53). Production of the Class C54, originally intended for this role, was discontinued in 1931 after just 17 locomotives due to various design flaws. The C55's design incorporated many lessons learned from the C54's shortcomings, particularly in the structure of the main frame. Twenty C55 locomotives were built with a streamlined design, and they were the last Japanese locomotives to be equipped with driving wheels with spokes. The 63rd C55 was given a new class, the Class C57, due to changes in the design.[2]

Preserved examples

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Japan

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Taiwan

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See also

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References

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  1. ^ Inoue, Kōichi (1999). 国鉄機関車辞典 [JNR Locomotive Encyclopedia]. Japan: Sankaido. pp. 34–35. ISBN 4-381-10338-6.
  2. ^ Shima, Hideo (January 1984). 鉄道ピクトリアル てい談(原文ママ)流線型時代を語る [Memories of the era of streamliners] (in Japanese). 電気車研究会. pp. 10–15.