Kumsong-class locomotive

Kŭmsŏng
금성

금성8002 on display at the 3 Revolutions Museum.
Type and origin
Power type Diesel-electric
Builder Kim Chong-t'ae Works
 North Korea
Build date 1970s
Total produced at least 4
Specifications
UIC class Co-Co
Gauge 1,435 mm (4 ft 8 1⁄2 in) standard gauge
Driver dia. 1,050 mm (41.34 in)
Length 17,550 mm (57 ft 7 in)*
Width 2,950 mm (9 ft 8 in)*
Height 4,615 mm (15 ft 1.7 in)*
Fuel type diesel
Prime mover DPRK copy of Kolomna 14D40
Engine type V12 diesel
Cylinders 12
Transmission Electric
Loco brake air
Performance figures
Maximum speed 100 km/h (62 mph)
Power output 1,470 kW (1,970 hp)
Career
Operators North Korea Korean State Railway
Number in class ≥2
Numbers 금성8001, 금성8002
* - dimensions of original M62

The Kŭmsŏng class (Korean: 금성, "Gold Star") locomotives are an unlicensed copy of the Soviet-made M62-type diesel locomotive,[1] built by the Kim Chong-t'ae Electric Locomotive Works in P'yŏngyang, North Korea.[2]

Description

Starting in 1967, the Voroshilovgrad Locomotive Factory in Voroshilovgrad, USSR (now Luhansk, Ukraine), began production of 64 K62-class variants of the M62 for the Korean State Railway.[3] The Kim Chong-t'ae works subsequently reverse-engineered these locomotives, along with their diesel engines and other components imported from the USSR.[4] These efforts led to the production of the Kŭmsŏng class locomotives using both copied components and Russian-made parts.[1]

In testing, the first prototype, numbered 8001, the goal of attaining a maximum speed of 100 km/h (62 mph) was achieved,[1] and the copy of the Kolomna 14D40 engine produced 1,470 kW (1,970 hp). However, reliability issues prevented mass production.[5] The second unit, 8002, has been on display at the Museum of the Three Revolutions in P'yŏngyang since it was built.[1] The first two units were both painted in a yellow and red livery, strikingly different from the blue and green scheme applied to the Soviet-made versions. 8001 is in service, pulling freight trains on the P'yŏngŭi Line

Another view of Kŭmsŏng 8002.

There are a number of noticeable external differences between the Kŭmsŏng class locomotives and the Soviet-built M62s. The most immediately evident is the number and arrangement of the side windows, and the shape of the cab windows. Also very different are the headlights: the top light is round on the Kŭmsŏng instead of rectangular, and the main headlights are mounted in pairs, and higher up, than on the M62.[6] Another readily noticeable difference is that the bogie frames are constructed with welded steel profiles.[7]

Conversions to Electric

Like the M62, some Kŭmsŏng class locomotives have also been converted to Kanghaenggun-class electric locomotives.[8] Two have been seen so far - #0309 in dark green and white, and #399 in dark blue and white, but it is not known whether these were converted from existing Kŭmsŏng class locomotives originally built as diesels, or if the electrics use newly-built bodies.


References

  1. 1 2 3 4 Kokubu, Hayato, 将軍様の鉄道 (Shōgun-sama no Tetsudō), ISBN 978-4-10-303731-6
  2. ↑ 3大革命展示館
  3. ↑ Тепловозы семейства М62: некоторые факты и размышления
  4. ↑ 朝鲜铁路机车车辆概况一览
  5. ↑ 朝鲜铁路机车车辆概况一览（续）
  6. ↑ 強行軍型399号の正体
  7. ↑ M62 - Taiga Drums in North Korea
  8. ↑ 平壌～北京間国際列車定州→新義州
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