JNR Class DF50
Class DF50 | |||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() A pair of DF50s on a farewell tour in 1983 | |||||||||||||||||||||||
| |||||||||||||||||||||||
| |||||||||||||||||||||||
| |||||||||||||||||||||||
|
The Class DF50 (DF50形) is a class of Bo-Bo-Bo wheel arrangement diesel-electric locomotives operated by Japanese National Railways (JNR) in Japan from 1957 until 1983.[1]
Variants
[edit]DF50-0
[edit]The first batch of 65 locomotives was built between 1957 and 1962 with Sulzer 8-cylinder 8LDA25A 1,060 hp diesel engines.[1][2] Production was shared between Kisha Seizō, Mitsubishi, and Nippon Sharyō.[2]
- DF50 1 on a passenger service in 1979
- DF50 65 on a freight working in 1982
DF50-500
[edit]A later batch of 73 locomotives was built between 1958 and 1963 with MAN V6-cylinder V22/30 1,200 hp diesel engines.[1][2] Production was shared between Hitachi, Kawasaki, and Toshiba.[2]
- DF50 573 on a passenger service in Shikoku in 1979
Operations
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/JNR_df50_18_43_togano_senyou.jpg/220px-JNR_df50_18_43_togano_senyou.jpg)
Class DF50 locomotives were intended for use on both passenger and freight services, and included a steam generator for train heating.[3] They operated on the following lines, including use hauling "Blue Train" sleeping car services.[2]
In later years, operations were restricted to Kyushu and Shikoku, with the remaining locomotives withdrawn in 1983, except for DF50 1, which later passed into JR Shikoku ownership.[1]
Livery
[edit]The locomotives were initially painted in all-over maroon with stainless steel bands, but were subsequently repainted into the standard JNR diesel locomotive livery of vermillion and grey.[2]
Preserved examples
[edit]Three Class DF50 locomotives were preserved.[3]
- DF50 1: Preserved at The Railway History Park in Saijo, Ehime
- DF50 4: Preserved in a park in Osaka
- DF50 18: Formerly preserved at the Modern Transportation Museum, Osaka, but moved to the Tsuyama Railroad Educational Museum in Tsuyama, Okayama in March 2015[4]
- Preserved DF50 1 at The Railway History Park in Saijo in May 2015
- Preserved DF50 18 at the Tsuyama Railroad Educational Museum in May 2016
Classification
[edit]The DF50 classification for this locomotive type is explained below.
- D: Diesel locomotive
- F: Six driving axles
- 50: Locomotive with maximum speed exceeding 85 km/h
References
[edit]![](http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png)
- ^ a b c d JR全車輛ハンドブック1995 [JR Rolling Stock Handbook 1995] (in Japanese). Japan: Neko Publishing. 1995. p. 71.
- ^ a b c d e f Inoue, Kōichi (1999). 国鉄機関車事典: 蒸気・電気・ディーゼル機関車66形式 国鉄機関車辞典 [JNR Locomotive Encyclopedia] (in Japanese). Japan: Sankaido. pp. 182–183. ISBN 978-4-381-10338-3.
- ^ a b Sasada, Masahiro (September 2012). 国鉄&JR保存車大全 [JNR & JR Preserved Rolling Stock Complete Guide] (in Japanese). Tokyo, Japan: Ikaros Publications Ltd. pp. 34, 127. ISBN 978-4863206175.
- ^ DF50 18が津山に向けて陸送される [DF50 18 moved to Tsuyama]. RM News (in Japanese). Japan: Neko Publishing Co., Ltd. 11 March 2015. Archived from the original on 5 August 2018. Retrieved 11 March 2015.