JNR Class C12

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JNR C12 66 20120319.jpg
Preserved C12 66, on the Mooka Railway, March 2012
Type and origin
Power type Steam
Build date 1932–1947
Total produced 282
 • Whyte 2-6-2T
 • UIC 1′C1′ h2t
Gauge 1,067 mm (3 ft 6 in)
Driver dia. 1,400 mm (55 18 in)
Length 11,350 mm (37 ft 2 34 in)
Height 3,900 mm (12 ft 9 12 in)
Axle load 10.90 tonnes (10.73 long tons; 12.02 short tons)
Adhesive weight 32.00 tonnes (31.49 long tons; 35.27 short tons)
Loco weight 50.05 tonnes (49.26 long tons; 55.17 short tons)
Fuel capacity 1.50 tonnes (1.48 long tons; 1.65 short tons)
Water cap 5,500 litres (1,200 imp gal; 1,500 US gal)
 • Firegrate area
1.30 m2 (14.0 sq ft)
 • Tube plates 3,200 mm (10 ft 6 in)
 • Small tubes 45 mm (1 34 in), 68 off
 • Large tubes 127 mm (5 in), 16 off
Boiler pressure 14.0 kg/cm2 (1.37 MPa; 199 psi)
Heating surface 53.5 m2 (576 sq ft)
 • Tubes and flues 46.1 m2 (496 sq ft)
 • Firebox 7.4 m2 (80 sq ft)
 • Heating area 19.8 m2 (213 sq ft)
Cylinders Two, outside
Cylinder size 400 by 610 millimetres (15 34 in × 24 in)
Valve gear Walschaerts
Performance figures
Power output 505 PS (371 kW; 498 hp)
Tractive effort 81.356 kN (18,290 lbf)
Class C12
Numbers C12 1 – C12 282

The Class C12 is a type of 2-6-2T steam locomotive built by the Japanese Government Railways and the Japanese National Railways from 1932 to 1947. A total of 282 Class C12 locomotives were built.

Service in outside of Japan[edit]

China Railways PL51 and Vietnam Railways 131[edit]

From 1938 to 1939, 60 C12s were converted to metre gauge and shipped to North China Transport, where they operated primarily between Zhengding and Taiyuan. They were classified プレA. In 1939 Shijiazhuang–Taiyuan Railway was converted to standard gauge, these locomotives removed to Datong–Puzhou Railway north section. After the establishment of the People's Republic of China, they were taken over by the China Railway, where they were classified ㄆㄌ51 (PL51) in 1951.[1] In 1956 the Datong–Puzhou Railway north section was reconverted to standard gauge, they were transferred to Vietnam, and they were classified 131.[2]

Taiwan Railways Administration CK120[edit]

From 1936 to 1941, the Nippon-Sharyo was built in 7 C12s for Governor-General of Taiwan Railway. After World War II, they were taken over by Taiwan Railways Administration, and they were classified CK120.[3] CK124 is preserved at Changhua Locomotive Depot.

Preserved examples[edit]

A large number of Class C12 locomotives are preserved, as listed below, with some in working order.



See also[edit]


  1. ^ C12 class in Vietnam _Kurogane No Michi
  2. ^ 131 Class_2-6-2 Tank Locomotive _Railways in Vietnam website
  3. ^ CK120 class _Kurogane No Michi
  4. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac Sasada, Masahiro (September 2012). 国鉄&JR保存車大全 [JNR & JR Preserved Rolling Stock Complete Guide]. Tokyo, Japan: Ikaros Publications Ltd. pp. 131–132. ISBN 978-4863206175. 
  5. ^ 内子駅前のC12 231の修復工事が完成 [Renovation of C12 231 preserved in front of Uchiko Station complete]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 25 December 2014. Retrieved 25 December 2014.