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China Railways JF1 information


China Railways JF1 (解放1)
Mantetsu Mikai class (ミカイ)
Manchukuo National Mikai class (ミカイ)
North China Transport Mikai class (ミカイ)
Central China Railway KD100 class
North Chosen Colonial Railway Class 1
Korean State Railway Migaha class (미가하)
Korean National RR Mika1 class (미카1)
Korean National RR Mika5 class (미카5)
US Army Transportation Corps 9400 srs
Mantetsu ミカコ1572, later ミカイ73, finally China Rys JF1 73
Type and origin
Power typeSteam
BuilderALCo (Schenectady), Shahekou, Kawasaki, Kisha Seizō, Nippon Sharyō, Hitachi, Sifang;
Sifang, Dalian, Qiqihar, Taiyuan, Kawasaki, Mitsubishi (postwar)
Build date1918−1928 (Mikai),
1933−1935 (国大ミカ),
1935−1945 (Mikako)
1950−1960 (JF1)
Total produced70 (Mikai), 77 (国大ミカ)
271 (Mikako), 709 (新国大ミカ),
409 (NCTC Mikai), 19 (KD100), 12 (NCCR)
475 (JF1)
44 (미카5)
Total: 2095
Specifications
Configuration:
 • Whyte2-8-2
Gauge1,435 mm (4 ft 8+12 in) standard gauge
Driver dia.1,370 mm (53.94 in)
Length23,750 mm (77 ft 11 in) (Mikako)
21,906 mm (71 ft 10+12 in) (新国大ミカ/JF1)
22,634 mm (74 ft 3+18 in) (JF1 mod)
Height4,510 mm (14 ft 9+12 in) (JF1)
Axle load20.00 t (19.68 long tons; 22.05 short tons)
Adhesive weight76.17 t (74.97 long tons; 83.96 short tons) (Mikai)
78.62 t (77.38 long tons; 86.66 short tons) (国大ミカ)
79.88 t (78.62 long tons; 88.05 short tons) (Mikako)
79.94 t (78.68 long tons; 88.12 short tons) (新国大ミカ/JF1)
Loco weight98.72 t (97.16 long tons; 108.82 short tons) (Mikai)
102.27 t (100.65 long tons; 112.73 short tons) (国大ミカ)
103.10 t (101.47 long tons; 113.65 short tons) (Mikako)
103.85 t (102.21 long tons; 114.48 short tons) (新国大ミカ/JF1)
Total weight185.11 t (182.19 long tons; 204.05 short tons) (Mikai)
174.85 t (172.09 long tons; 192.74 short tons) (JF1)
Fuel capacity14.00 t (13.78 long tons; 15.43 short tons)
Water cap.30.00 m3 (7,930 US gal; 6,600 imp gal)
Tender cap.9.60 t (9.4 long tons; 10.6 short tons) (coal),
24 m3 (6,300 US gal; 5,300 imp gal) (water)
Firebox:
 • Grate area5.06 m2 (54.5 sq ft) (Mikai/国大ミカ/新国大ミカ)
5.08 m2 (54.7 sq ft) (Mikako)
5.09 m2 (54.8 sq ft) (JF1)
Boiler pressure13.4 kgf/cm2 (191 psi; 1,314 kPa) (Mikai/国大ミカ)
14.0 kgf/cm2 (199 psi; 1,373 kPa) (Mikako/新国大ミカ/JF1)
Heating surface337.79 m2 (3,635.9 sq ft) (Mikai)
338.10 m2 (3,639.3 sq ft) (国大ミカ)
274.30 m2 (2,952.5 sq ft) (Mikako/新国大ミカ)
299.80 m2 (3,227.0 sq ft) (Mikako 1575−76)
282.11 m2 (3,036.6 sq ft) (JF1)
SuperheaterType A (all types)
Type E (Mikako 1575−1576)
Cylinders2
Cylinder size584 mm × 711 mm
(22.992 in × 27.992 in) (Mikai)
584 mm × 710 mm
(22.992 in × 27.953 in) (国大ミカ)
580 mm × 710 mm
(22.835 in × 27.953 in) (Mikako)
584 mm × 710 mm
(22.992 in × 27.953 in) (新国大ミカ)
580 mm × 710 mm
(22.835 in × 27.953 in) (JF1)
Performance figures
Maximum speed80 km/h (50 mph)
Power output1,545 hp (1,152 kW) (Mikai/国大ミカ)
1,545 hp (1,152 kW) (Mikako/新国大ミカ)
1,545 hp (1,152 kW) (JF1)
1,945 hp (1,450 kW) (JF1 mod)
(at wheels)
Tractive effort235.6 kN (53,000 lbf) (JF1)
Career
OperatorsSouth Manchuria Railway
Manchukuo National Railway
North China Transport
Central China Railway
North Chosen Colonial
China Railway
Korean State Railway
Korean National Railroad
ClassSMR: ミカイ (Mikai), ミカコ (Mikako)
MNR: ミカ (Mika), ミカナ (Mikana)
NCTC: ミカイ (Mikai)
CCR: KD100
NCCR: 1 srs
CR: ㄇㄎ壹 (MK1; 1951−59)
CR: 解放1 (JF1; 1959−end)
KSR: 미가하/6000/6100 srs
KNR: 미카1 (Mika1), 미카5 (Mika5)
USATC: 9400 srs
Number in classSMR Mikai: 70
SMR Mikako: 271
MNR 國大ミカ: 74
MNR 新國大ミカ: 709
NCTC Mikai: 409
CCR KD100: 19
NCCR: 22
CR: 2027
KSR: ?
KNR: 56
USATC: 56
NumbersSMR: ミカイ1−70 (Mikai)
SMR: ミカイ71−341 (Mikako)
MNR: ミカイ501−574 (國大ミカ)
MNR: ミカイ575−1283 (新國大ミカ)
NCTC: ミカイ1501−1909
CCR: KD10001−KD10019
NCCR: 1-22
CR: JF1 1−341 (ex Mantetsu Mikai)
CR: JF1 342−500 (ex ?)
CR: JF1 501−574 (國大ミカ)
CR: JF1 575−1283 (新國大ミカ)
CR: JF1 1284−1500 (ex ?)
CR: JF1 1501−2100 (ex NCTC/CCR/etc)
CR: JF1 2101−2500 (new build)
CR: JF1 4001−4101 (new build)
KSR: 미가하x, 60xx, 61xx
KNR: 미카1x, 미카5-1 − 미카5-56
USATC: 9401−9432, others

The China Railways JF1 (解放1, Jiěfàng, "liberation") class steam locomotive was a class of 2-8-2 steam locomotives for freight trains operated by the China Railway. They were originally built in the United States, Japan and Manchukuo between 1918 and 1945 for the South Manchuria Railway (Mantetsu), the Manchukuo National Railway, the North China Transportation Company, and the Central China Railway. After the end of the Pacific War, they were taken over by the China Railway, the Korean State Railway in North Korea and by the Korean National Railroad in South Korea, and more were built in China after 1949 for the China Railway, which ultimately operated over 2,000 of the type.[1]

As well, more were built in Japan for the US Army Transportation Corps during the Korean War; these were later taken over by the Korean National Railroad.[2] Similarly, China supplied some to the Korean State Railway as war aid.[1]

  1. ^ a b Kokubu, Hayato (January 2007). 将軍様の鉄道 [Shōgun-sama no Tetsudō] (in Japanese). 新潮社 (Shinchosha). p. 107. ISBN 978-4-10-303731-6.
  2. ^ "Korean National RR MK-5 2-8-2". donsdepot.donrossgroup.net. 6 August 2023.

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