JNR Class ED73
Class ED73
The first locomotive delivered, ED73 1, in 1962 |
Type and origin |
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Power type |
Electric |
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Builder |
Toshiba |
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Build date |
1962 - 1963 |
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Total produced |
22 |
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Performance figures |
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Power output |
1,900 kW |
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Career |
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Operators |
JNR |
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Numbers |
ED73 1–22, ED73 1001–1022 |
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Locale |
Kyushu |
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Delivered |
1962 |
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First run |
1962 |
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Preserved |
0 |
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The Class ED73 (ED73形) was a Bo-Bo wheel arrangement AC electric locomotive type operated by Japanese National Railways (JNR) in Kyushu, Japan, between 1962 and the 1980s.[1]
Design
The Class ED73 design was broadly derived from the Class ED72 locomotives introduced a year earlier, but as the Class ED73 was primarily intended for use on freight services, it did not include a steam generator for train heating, and was therefore 3 m (9 ft 10 in) shorter than the Bo-2-Bo wheel arrangement Class ED72.[1] The DT119B bogies were also almost identical to those used on the full-production Class ED72 locomotives.[2]
History
A total of 22 locomotives were built by Toshiba between 1962 and 1963.[1] The first locomotives were delivered to Moji Depot in northern Kyushu.[2]
In the late 1960s, the entire class was modified with improved braking performance for use on express freight services, and the locomotives were renumbered in the ED73 10xx series.[1] The locomotive numbers were painted yellow at this time.[1] In later years, the class was also used on overnight sleeping car services, as these trains did not require steam heating.[1]
The class was withdrawn by the early 1980s.[1] No examples of the class have been preserved.[3]
See also
References
- 1 2 3 4 5 6 7 Inoue, Kōichi (1999). 国鉄機関車辞典 [JNR Locomotive Encyclopedia]. Japan: Sankaido. pp. 140–141. ISBN 4-381-10338-6.
- 1 2 Tezuka, Kazuyuki (January 1963). "交流電気機関車ED731" [AC electric locomotive ED73 1]. Japan Railfan Magazine (in Japanese). Vol. 3 no. 19 (Japan: Koyusha Co., Ltd.). p. 14.
- ↑ Sasada, Masahiro (September 2012). 国鉄&JR保存車大全 [JNR & JR Preserved Rolling Stock Complete Guide]. Tokyo, Japan: Ikaros Publications Ltd. p. 126. ISBN 978-4863206175.
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