Sentetsu Amei-class locomotives

The Amei class (アメイ) was a class of steam tender locomotives of the Chosen Government Railway (Sentetsu) with 4-4-0 wheel arrangement.[1] The "Ame" name came from the American naming system for steam locomotives, under which locomotives with 4-4-0 wheel arrangement were called "American".[2]

Chosen Government Railway Amei class (アメイ)
Korean National Railroad Ame1 class (아메1)
An Amei-class locomotive of Sentetsu.
Type and origin
Power typeSteam
BuilderALCo
Build date1911
Total produced6
Specifications
Configuration:
​
 • Whyte4-4-0
Gauge1,435 mm (4 ft 8 1⁄2 in)
Driver dia.1,830 mm (72 in)
Length17,793 mm (700.5 in)
Width3,023 mm (119.0 in)
Height4,228 mm (166.5 in)
Loco weight53.84 t (52.99 long tons; 59.35 short tons)
Tender weight44.58 t (43.88 long tons; 49.14 short tons)
Fuel typeCoal
Fuel capacity7.2 t (7.1 long tons; 7.9 short tons)
Water cap14.5 m3 (510 cu ft)
Firebox:
 • Firegrate area		2.34 m2 (25.2 sq ft)
Boiler:
​
 • Small tubes214 x 51 mm (2.0 in)
Boiler pressure12.6 kgf/cm2 (179 psi)
Heating surface130.8 m2 (1,408 sq ft)
 • Tubes118.8 m2 (1,279 sq ft)
 • Firebox12.0 m2 (129 sq ft)
Cylinders2
Cylinder size450 mm × 660 mm (18 in × 26 in)
Valve gearWalschaerts
Performance figures
Maximum speed95 km/h (59 mph)
Tractive effort79.0 kN (17,800 lbf)
Career
OperatorsChosen Government Railway
Korean National Railroad
ClassSentetsu: アメイ
KNR: 아메1
Number in class6
NumbersSentetsu: アメイ1 – アメイ6 (1938-1945)
KNR: 아메1-1 – 아메1-6

Description

Sentetsu introduced the Amei class locomotives in 1911, receiving six from ALCo of the United States. They were fitted with 1,830 mm (72 in) diameter driving wheels, which was a considerable size for the time, giving them a high operational speeds of 95 km/h (59 mph).[1] Unlike the Tehoi class locomotives, the Amei class were equipped with a four-axle tender. They were found to offer no advantage over the Teho types or Sorii class, and no further 4-4-0 locomotives were ever ordered by Sentetsu.


Sentetsu put them into service on the "Ryūki" express,[1] Korea's first express train, operating between Sinuiju and Busan via Gyeongseong,[3] along the Gyeongui Line between Sinuiju and Gyeongseong. Their original numbers are unknown, but they were numbered 401 through 406 in 1918, and then became アメイ1 through アメイ6 numbers in Sentetsu's general renumbering of 1938.

Postwar: Korean National Railroad 아메1 (Ame1) class

After the Liberation of Korea, all six Amei-class locomotives remained in South Korea, where they were designated 아메1 class by the Korean National Railroad.[4]

Construction
Sentetsu running number
1911–19181918–19381938–1945KNR NumberBuilderYearNotes
?アメ401アメイ1아메1-1ALCo1911
?アメ402アメイ2아메1-2ALCo1911
?アメ403アメイ3아메1-3ALCo1911
?アメ404アメイ4아메1-4ALCo1911
?アメ405アメイ5아메1-5ALCo1911
?アメ406アメイ6아메1-6ALCo1911

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. Japanese Government Railways (1937), 鉄道停車場一覧. 昭和12年10月1日現在(The List of the Stations as of 1 October 1937), Kawaguchi Printing Company, Tokyo, pp. 483-485
  4. "North and South Korea Steam Locomotives". 20 April 2004. Archived from the original on 20 April 2004.CS1 maint: bot: original URL status unknown (link)
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