Sentetsu Mateni-class locomotive

The Mateni class (マテニ) locomotives were a class of steam tender locomotives of the Chosen Government Railway (Sentetsu) with 4-8-2 wheel arrangement.[1] The "Mate" name came from the American naming system for steam locomotives, under which locomotives with 4-8-2 wheel arrangement were called "Mountain".

Chosen Government Railway Mateni class (マテニ)
Korean State Railway Madŏdu class (마더두)
Korean National Railroad Mateo2 class (마터2)
Builder's photo of a Kawasaki-built Mateni-class locomotive in 1943.
Type and origin
Power typeSteam
BuilderKawasaki
Build date1943−1945
Total produced34
Specifications
Configuration:
 • Whyte4-8-2
Gauge1,435 mm (4 ft 8+12 in)
Driver dia.1,520 mm (59.84 in)
Length23,266 mm (76 ft 4.0 in)
Height4,600 mm (15 ft 1 in)
Loco weight112.82 t (111.04 long tons)
Tender weight65.80 t (64.76 long tons)
Fuel capacity12.00 t (11.81 long tons)
Water cap.28.0 m3 (7,400 US gal)
Tender cap.9.60 t (9.4 long tons) (coal),
24 m3 (6,300 US gal) (water)
Firebox:
 • Grate area5.24 m2 (56.4 sq ft)
Boiler:
 • Small tubes63 x 51 mm (2.0 in)
 • Large tubes104 x 90 mm (3.5 in)
Boiler pressure14.0 kgf/cm2 (199 psi)
Heating surface:
 • Firebox24.27 m2 (261.2 sq ft)
 • Tubes217.00 m2 (2,335.8 sq ft)
 • Total surface241.27 m2 (2,597.0 sq ft)
Superheater:
 • Heating area96.50 m2 (1,038.7 sq ft)
Cylinders2
Cylinder size600 mm × 710 mm
(23.622 in × 27.953 in)
Valve gearWalschaerts
Performance figures
Maximum speed90 km/h (56 mph)
Tractive effort220.2 kN (49,500 lbf)
Career
OperatorsChosen Government Railway
Korean State Railway
Korean National Railroad
ClassSentetsu: マテニ
KSR: 마더두
KNR: 마터2
Number in classSentetsu: 34
NumbersSentetsu: マテニ1–マテニ34
Delivered1943–1945

Description

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Designed by Sentetsu, the Mateni class was designed for long-distance freight and passenger trains on steep lines; shipments increased with the higher speeds offered by these locomotives. A total of 33 were built from 1943 through 1945, all by Kawasaki. The maximum axle load was 22 tons, in comparison to the 18 tons of Sentetsu's standard mainline freight locomotives, the Mikasa class, and the tractive effort of the Mateni was 220.2 kN (49,500 lbf), as compared to the 179.0 kN (40,200 lbf) of the Mikasa class. In addition, the locomotives were equipped with automatic stokers and economisers to improve boiler efficiency. In addition to being used for heavy freight trains, they were also used on passenger trains, and was the last type of locomotive designed by Sentetsu.[1]

Year Builder Total Numbers
1943 Kawasaki 14 マテニ1–マテニ14
1944 Kawasaki 12 マテニ15–マテニ26
1945 Kawasaki 7 マテニ27–マテニ33
1946 Kawasaki 1 マテニ34
Total 34

Postwar

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After the Liberation and subsequent partition of Korea, both the Korean National Railroad (KNR) in the South and the Korean State Railway (Kukch'ŏl) in the North operated 4-8-2s inherited from Sentetsu. Of the 83 locomotives that were built of both the Mateni and Matei classes, only 77 remained in 1946; of these, 33 went to the Korean National Railroad in the South, and 44 to the Korean State Railway in the North, though none of the ones operated by the KNR are known for certain to have been of the Mateni class.[2] The six locomotives of both classes that remain unaccounted for were likely either destroyed during the Pacific War or were possibly taken by Soviet Army, which during its occupation of North Korea took a large number of locomotives back to the USSR.[3]

The bulk of the Mateni class likely ended up in North Korea with the Korean State Railway,[2] where they were initially designated 마더두 class (Madŏdu), and around the 1970s renumbered in the 7200 series. In 2003 an out-of-service Mateni was still parked at Sinuiju.[4]

Additionally, a Mateni was completed by Kawasaki in 1946 and delivered to the KNR as 마터2-34.[5]

References

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  1. ^ a b Byeon, Seong-u (1999). 한국철도차량 100년사 [Korean Railways Rolling Stock Centennial] (in Korean). Seoul: Korea Rolling Stock Technical Corp.
  2. ^ a b "Korean National RR Class MT-1 4-8-2". donsdepot.donrossgroup.net.
  3. ^ Kokubu, Hayato (2007). 将軍様の鉄道 (Shōgun-sama no Tetsudō) (in Japanese). Shinchosha. p. 72. ISBN 978-4-10-303731-6.
  4. ^ "Reisebericht Korea zur Adventszeit (Dezember 2003)". www.farrail.net (in German).
  5. ^ "三原車輛製作所(その16) 韓国向けD51(その5) 出荷の背景". www.ameblo.jp (in Japanese).