China Railways JS

JS
建设 JianShe

JS 5001 at the Beijing Railway Museum
Type and origin
Power type Steam
Builder Dalian, Qishuyan, Datong, Beijing 7th Feb works
Total produced 1916[1][2][3]
Specifications
Configuration 2-8-2
Gauge 1,435 mm (4 ft 8 12 in)
Driver dia. 1,370 mm (53.94 in)
Minimum curve 145 m (476 ft)
Wheelbase 4.419 m (14 ft 5.98 in) (fixed)
10.192 m (33 ft 5.3 in) (locoo)
20.487 m (67 ft 2.6 in) (total loco+tender)
Length total: ~23 m (75 ft 6 in) (loco + tender)
Width 3.332 m (10 ft 11.18 in)
Height ~4.7 m (15 ft 5.04 in)
Adhesive weight 79.78 t (78.52 long tons; 87.94 short tons) (adhesive weight)
Loco weight ~103 t (101 long tons; 114 short tons)
(91.3 t (89.9 long tons; 100.6 short tons) empty)
Tender weight 32 t (31.5 long tons; 35.3 short tons) (empty)
Tender cap 17 t (16.7 long tons; 18.7 short tons) (coal), 35 m3 (1,200 cu ft) (water)
Firebox:
  Firegrate area
5.08 m2 (54.7 sq ft)
Boiler pressure 15 atm (1,500 kPa; 220 psi)
Cylinders 2
Cylinder size 580 mm × 710 mm (22.835 in × 27.953 in)
bore x stroke
Performance figures
Maximum speed 85 km/h (53 mph)
Power output 2,270 hp (1,690 kW) (at rail)
Tractive effort ~250 kN (56,000 lbf) (247.7 kN or 55,700 lbf,[1] 261.5 kN or 58,800 lbf[4])
Sources:[4][5] except where noted

The China railways JS class (Chinese: 建设; pinyin: Jiàn Shè; literally: "Construction or Development") was a type of 2-8-2 tender steam locomotive manufactured for use on mainline freight trains, as well as for heavy shunting.

History

The JS class was developed at the Dalian locomotive works;[4] the design used the chassis design of the China Railways JF class, with a new boiler type.,[3][6] The first locomotive was produced in 1957; subsequently Dalian work and Qishuyan Locomotive and Rolling Stock Works produced over 1000 of the class, Datong locomotive works, and the Beijing 7th Feb works also manufactured vehicles.[4] By 1965 1,135 vehicles had been made.[5]

A second production phase began in 1981; Datong produced 358 locomotives by 1986. In 1986 a revised 'B' specification was introduced, and 434 units of this type were made; construction ended in 1988.[3] the second tranche of locomotives received numbers from 8001 upwards. By the end of production 1916 units have been produced of both series combined.[1][2][3]

In the late 1980s the Boone and Scenic Valley Railroad of Iowa, USA bought a JS type locomotive for $355,000, number JS-8419.[7]

Numbering

Locomotives produced from 1957 to 1965 were numbered JS-5001 to JS-6135. Starting at 5001 avoided overlapping the numbers of the various types of JF occupying the 1 - 4100 (approx) range. Locomotives produced at Datong in the early 1980s were numbered JS-6201 to JS-6558; after the introduction of the revised 'B' specification the locomotives were numbered JS-8001 to JS-8423. A small number of locomotives operating outside the scope of the ministry of railways (industrial railways) received different number designations.[3]

Preservation

5000 Series

JS-5039 in Beijing Exhibition Center

6000 Series

8000 Series

Liuzhou Railway Vacational Technical College's JS-8284[9]

References

Wikimedia Commons has media related to China Railways JS.
  1. 1 2 3 新中国制造的蒸汽机车, www.kepu.net (in Chinese)
  2. 1 2 "建设(JS)型5001号蒸汽机车" ['Construction' class steam locomotive, JS-5001], www.china.com.cn (in Chinese)
  3. 1 2 3 4 5 Duncan Cotterill, "JS Class 2-8-2", Railography
  4. 1 2 3 4 建设型蒸汽机车 [Construction type steam locomotive], www.zztl.com (in Chinese), archived from the original on 23 December 2008
  5. 1 2 Sources:
  6. Duncan Cotterill, "JF Class 2-8-2", www.railography.co.uk
  7. 在美國的中國建設型蒸汽機車 [Construction class steam locomotive in the USA], www.readingtimes.com.tw (in Chinese)
  8. "建设(JS)型5001号蒸汽机车" [Construction class steam locomotive, JS-5001], www.china-rail.org (in Chinese), China Railway Museum
  9. 1 2 Sources:
  10. "国内首个高校机车博物园 在西南交大开园", scnews.newssc.org (in Chinese)
  11. Sources:
  12. "火车文化博物馆滨海欣嘉园火车文化休闲街开放", www.tianjinwe.com (in Chinese)


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