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Chosen Government Railway Tehoko class (テホコ) Korean National Railroad Teou5 class (터우5) Korean State Railway Tŏuo class (더우오)
A wrecked Sentetsu Tehoko-class locomotive in 1945.
Type and origin Power type Steam Builder ALCo, Shahekou Works Build date 1917–1919 Total produced 36
Specifications Configuration: ​  • Whyte 4-6-0 Gauge 1,435 mm (4 ft 8+1⁄2 in) Driver dia. 1,680 mm (66 in) Length 17,972 mm (58 ft 11.6 in) Width 2,997 mm (9 ft 10.0 in) Height 4,232 mm (13 ft 10.6 in) Loco weight 72.52 t (71.37 long tons) Tender weight 43.45 t (42.76 long tons) Fuel capacity 6.00 t (5.91 long tons) Water cap. 15,100 L (4,000 US gal) Firebox: ​  • Grate area 3.73 m (40.1 sq ft) Boiler: ​  • Small tubes 167 x 51 mm (2.0 in)  • Large tubes 20 x 137 mm (5.4 in) Boiler pressure 12.6 kgf/cm (179 psi) Heating surface: ​  • Firebox 12.00 m (129.2 sq ft)  • Tubes 161.90 m (1,742.7 sq ft)  • Total surface 175.50 m (1,889.1 sq ft) Superheater: ​  • Heating area 38.60 m (415.5 sq ft) Cylinders 1 Cylinder size 530 mm × 660 mm (21 in × 26 in) Valve gear Walschaerts
Performance figures Maximum speed 95 km/h (59 mph) Tractive effort 120.0 kN (27,000 lbf)
Career Operators Chosen Government Railway Korean National Railroad Korean State Railway Class Sentetsu: テホコ KNR: 터우5 KSR: 더우오 Number in class 36 Numbers Sentetsu: テホコ1–テホコ36 Delivered 1917–1919

The Tehoko-class (テホコ) locomotives were a class of steam tender locomotives of the Chosen Government Railway (Sentetsu) with 4-6-0 wheel arrangement. The "Teho" name came from the American naming system for steam locomotives, under which locomotives with 4-6-0 wheel arrangement were called "Ten Wheeler".

After the Liberation of Korea, of the 178 surviving locomotives of all Teho classes - including six previously owned by private railway companies - 106 went to the Korean National Railroad in the South, and 72 to the Korean State Railway in the North.

Description

The first large class of 4-6-0 locomotives delivered to Sentetsu was the テホコ (Tehoko) class, which were express locomotives equipped with automatic injectors and other improvements, and which were much larger than the previous Teho classes. The first nine, originally numbered 271–279, were built by ALCo's Schenectady Works in 1917, followed by six copies, numbered 280–285, built in the same year by the South Manchuria Railway's Shahekou Works; Another twelve followed in 1918 from ALCO's Pittsburgh plant, numbered 295–306. Like all Teho-type locomotives operated by Sentetsu, they had driving wheels of 1,680 mm (66 in) and a top speed of 95 km/h (59 mph), and were initially used as mainline passenger power on the Gyeongbu Line; they were later relegated to branchline duties. In the 1938 general renumbering they became テホコ1 through テホコ36. The 27 locomotives on the roster at the time of the 1918 renumbering became 701–727 in that year; the last nine, delivered in 1918–19 from Shahekou, were numbered 728–736. In Sentetsu's general renumbering of 1938 the class was designated テホコ (Tehoko) class, and the locomotives were renumbered テホコ1 through テホコ38.

Postwar

Korean National Railroad 터우5 (Teou5) class

The exact dispersal of the Tehoko-class locomotives after the partition of Korea in 1945 and the division of Sentetsu assets in 1947 is uncertain, but at least seven went to the South, where the Korean National Railroad designated them 터우5 (Teou5) class and used them until April 1955, when they were replaced by diesel locomotives.

The only surviving Teho type locomotive in South Korea is 터우5-700, on display on a plinth at the entrance of Korail's Human Resources Department. Sentetsu held a commemoration of the 10th anniversary of the re-establishment of the Railway Bureau in Yongsan in 1935, and built 터우5-700 for display there. It was built as a cutaway displaying the internal structure of the locomotive, and it was equipped with a motor to move the driving wheels, which in turn shows the operation of the locomotive's moving parts. After use as a display item it was moved to the Railway University in Yongsan, where it was used as an instructional tool for students, until subsequently being relocated once again to its current location for preservation as part of Korea's railway cultural heritage.

Korean State Railway 더우오 (Tŏuo) class

Most of the class went to the North after the partition, where they were designated 더우오 (Tŏuo) class by the Korean State Railway, but little is known of their service lives and subsequent fates.

Construction

References

1. ^ Byeon, Seong-u (1999). 한국철도차량 100년사 [Korean Railways Rolling Stock Centennial] (in Korean). Seoul: Korea Rolling Stock Technical Corp.
2. Colvin, Fred H. (1906). The railroad pocket-book: a quick reference cyclopedia of railroad information. New York, Derry-Collard; London, Locomotive Publishing Company (US-UK co-edition). p. L‑9.
3. "Korean National RR TW-1 4-6-0". donsdepot.donrossgroup.net.

v t e Chosen Government Railway locomotives and rolling stock
Locomotives	Steam (Tender) Amei (アメイ) Matei (マテイ) Mateni (マテニ) Mikai (ミカイ) Mikani (ミカニ) Mikasa (ミカサ) Mikashi (ミカシ) Pashii (パシイ) Pashini (パシニ) Pashisa (パシサ) Pashishi (パシシ) Pashiko (パシコ) Sorii (ソリイ) Tehoi (テホイ) Tehoni (テホニ) Tehosa (テホサ) Tehoshi (テホシ) Tehoko (テホコ) Tehoro (テホロ) Steam (Tank) Barui (バルイ) Goroi (ゴロイ) Mogai (モガイ) Purei (プレイ) Pureni (プレニ) Puresa (プレサ) Pureshi (プレシ) Pureko (プレコ) Purero (プレロ) Purena (プレナ) Pureha (プレハ) Satai (サタイ) Yonrin (4輪) Steam (Loaned in) Mantetsu Mikai (滿鐵ミカイ) Mantetsu Pashisa (滿鐵パシサ) Kokusen Pashiro (國線パシロ) Kokusen Soriro (國線ソリロ) Electric DeRoI (デロイ) (Toshiba) DeRoI (デロイ) (Mitsubishi) DeRoNi (デロニ)
Railcars	Steam Shigui (シグイ) Shiguni (シグニ) Petrol Keha (ケハ) Diesel Jiha (ジハ)
Narrow-Gauge	Locomotives Nakii (ナキイ) Nakini (ナキニ) Nakisa (ナキサ) Nakishi (ナキシ) Nakiko (ナキコ) Nakiro (ナキロ) Nakina (ナキナ) Nakiha (ナキハ) Railcars Nakeha1 (ナケハ1) Nakeha2 (ナケハ2)

v t e Rolling stock of Korail
Current/Active	High-speed trains KTX-I (100000) KTX Sancheon (KTX-II, 110000 / 120000 / 130000 / 140000) KTX-Eum (EMU-260, 150000) KTX-Cheongryong (EMU-320, 160000) Locomotives Electric 8000 8100 8200 8500 Diesel 4400 [ko] 7300 7400 7500 7600 Multiple units Electric 3000 [ko] 200000 210000 (EMU-150) 311000 319000 321000 331000 341000 351000 361000 368000 371000 381000 391000 [ko] 392000 [ko] Diesel Special railcars [ko] Roger-1000k [ko]
Retired/Withdrawn	Locomotives Electric Dero3 Diesel 2000 2100 3000 3100 [ko] 3200 [ko] 4000 4100 4200 4300 5000 6000 6100 6200 [ko] 6300 7000 7100 7200 9100 [ko] Steam (Tender) Ame1 Mateo1 Mateo2 Mika1 (ex-Mantetsu) Mika1 (ex-Sentetsu) Mika2 Mika3 Mika4 Mika5 Mika6 1-5 (ex-Mantetsu) Mika6 (ex-Sentetsu) Mika7 Pasi1 Pasi3 Pasi4 Pasi5 Sori1 Sori2 1-100 Sori2 101 Sori6 Teou1 Teou2 Teou3 Teou5 Teou6 Teou6-100 901 Steam (Tank) Baru1 Moga1 Pureo1 Pureo2 Pureo3 Pureo4 Pureo7 Pureo7-100 Pureo7-200 Pureo7-300 Pureo8 Sata1 Multiple units Electric EEC [ko] 1000 Diesel 3rd class diesel railcars DC [ko] DEC [ko] DHC [ko] NDC [ko] CDC/RDC Gasoline Keha Passenger car Nakeha Narrow-gauge DC [ko]
Experimental	High-speed trains HSR-350x HEMU-430X Multiple units Electric TTX
See also Category:Rolling stock of South Korea

v t e Korean State Railway locomotives and rolling stock
Locomotives	Steam (Tender) Degaha→8100 Koroha Madŏha→7100 Madŏdu→7200 Migaha (ex-Mantetsu)→6000+6100 Migaha (ex-Sentetsu)→6100 Migadu→6200 Migasŏ→6300 Miganŏ→6400 Migayu→6600 Mogaha Paruha Pasiha Pasidu Pasisŏ (ex-Sentetsu) Pasisŏ (ex-Mantetsu) Pasinŏ Pasio Pasiyu Sigŭha Soriyu Tŏuha Tŏudu Tŏusŏ Tŏunŏ Tŏuo Tŏuyu 150 424 475 [cs] 8000 8500 Ol49 Steam (Tank) Purŏha→1100 Purŏdu→1200 Purŏsŏ (ex-Sentetsu)→1300 Purŏsŏ (ex-Mantetsu)→1300 Purŏnŏ→1400 Purŏo→1500 Purŏyu→1600 Purŏch'i→1700 Purŏp'a→1800 Sadaha 100 4110 Electric 100 150 170 200 300 500 0000 1000 2000 3000 4000 5000-5100-5200-5300 5400 6000 7000 90000 Chŏngiha Chŏngidu Chŏngisŏ Chŏngi5 Kanghaenggun Diesel 100 150 200 300 400 500 600 700 800 900 3000 8000 Red Flag CSE26-21 DF8B
Railcars & trainsets	Electric 100 150 500 900 1000 Juche unknown 6 car EMU Petrol Keha
Narrow-gauge locomotives	Steam 400 500 600 (630) (655) (660) (700) (900) 1500 Diesel (D) Electric Charyŏk Kaengsaeng Chŏnginŏ Ch'ŏngnyŏnjŏl Kinyŏm

• Locomotives of Korea under Japanese rule
• Steam locomotives of South Korea
• Locomotives of North Korea
• Railway locomotives introduced in 1917
• 4-6-0 locomotives
• ALCO locomotives
• Shahekou Works locomotives