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The JNR Class EF10 is a Japanese DC electric locomotive operated by the Japanese National Railways from 1935 to 1983.

History[]

The EF10 was one of Japan's earliest domestically-produced electric locomotives. Designed using data gathered from previous electric locomotives operated in Japan, which were generally imported from the United States and Europe, a unified standard was intended to be set for future locomotives as these imported electric locomotives usually had reliability problems and a lack of spare parts as they had to be imported from overseas and the locomotives were imported in small volumes, with the Domestic Electric Locomotive Project started in 1925 in an attempt to get Japanese locomotive manufacturers to design and develop their own electric locomotives. The program spawned the EF52, which was used for passenger service; however freight locomotives were still being imported from overseas so a domestically-produced locomotive had to be designed.

Full-scale development of what would become the EF10 was started in 1932. Sixteen locomotives were produced in 1934, based on the EF53 design. Initially used to pull freight trains in the Tokyo Metropolitan Area, some other locomotives were used in the Osaka, Kansai and Chūbu regions, also to pull freight trains; in 1960 they were transferred back to Tokyo and stationed at Kōzu Rolling Stock Depot and used in the Hachiōji and Tokyo regions. Withdrawals began in 1975, while scrapping began in 1979; all locomotives were withdrawn by 1983, having been replaced by EF15s on these regions.

EF10 35, located at the Kyushu Railway History Museum, is the only preserved EF10.

Design[]

The EF10s featured large box-shaped bodies with large top-mounted headlights.

Specifications[]

The EF10s used a nose suspension drive system. MT28 traction motors were used on the locomotives.

Preservation[]

The following Class EF10 locomotives have been preserved:

Number Manufacturer Equipment manufacturer Date manufactured Date retired Location Notes
EF10 35 Kisha Seizō Toshiba 10 December 1941 21 November 1978 Kyushu Railway History Museum, Kitakyushu, Kyushu, Japan Displayed under shelter

Gallery[]

JR Group motive power
JNR Diesel prototype DB10DC10DC11DD10
4-axle diesel DD11DD12DD13DD14DD15DD16DD17DD20DD21DD40DD41DD42DD50DD51DD53DD54DD90DD91DD92DD93
5-axle diesel DE10DE11DE15DE50
6-axle diesel DF40DF41DF50DF90DF91 (gen 1)DF91 (gen 2)DF92DF93
Shinkansen 911912
Narrow-gauge diesel Ke DB10Ke DB11
Early 2/4-axle freight electric AB10EB10ED10ED11ED12ED13ED14ED15ED16ED17ED18 (gen 1)ED18 (gen 2)ED19ED23ED24
Early 4-axle passenger electric ED50ED51ED52ED53ED54ED55ED56ED57
Early 6-axle freight electric EF10EF11EF12EF13EF14EF15EF16EF18
Early 6-axle passenger electric EF20EF50EF51EF52EF53EF54EF55EF56EF57EF58EF59HEF10HEF50
Early 8-axle electric EH10EH50HEH50HEH150
Early Abt rack rail electric EC40ED40ED41ED42
Acquired from private railways ED20ED21ED22ED25 (gen 1)ED25 (gen 2)ED26 (gen 1)ED26 (gen 2)ED27 (gen 1)ED27 (gen 2)ED28 (gen 1)ED28 (gen 2)ED29 (gen 1)ED29 (gen 2)ED30 (gen 1)ED31ED32ED33ED34ED35ED36ED37ED38Ke ED10DeKi 1RoKo 1DeKi 501RoKo 1000
DC 4-axle ED60ED61ED62ED63ED95
AC 4-axle ED44ED45ED70ED71ED72ED73ED74ED75ED76ED77ED78ED79ED90ED91ED93ED94
DC 6-axle EF60EF61EF62EF63EF64EF65EF66EF67EF90
AC 6-axle EF70EF71
Dual-current ED30 (gen 2)ED46ED92EF30EF80EF81
Other AH100
JR Group Dual-current electric ED500EF500EF510EH500
DC electric EF200EF210EH200
DC EMU M250
AC electric EH800
Diesel DD18DD19DB500DD200DF200ENR-1000
Hybrid HD300
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