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The JNR Class EF14 was a Japanese DC electric locomotive operated by the Japanese National Railways from 1931 to 1974.

History[]

The EF14 was spawned from the EF52 locomotives that were manufactured as one of Japan's first domestic passenger electric locomotives produced in volume. Initially constructed in 1931 as EF52 8 and EF52 9, the locomotives featured similar performance to the EF53 introduced the next year and can be considered their forerunners.

As their performance was significantly higher than the EF52s, they were reclassified as the Class EF54 in 1932. Initially used to pull fast passenger trains on the Tōkaidō Main Line, they were rebuilt to pull freight trains with the onset of the Pacific War to cope with the increasing demand for freight transport. Both locomotives were rebuilt at Hamamatsu Works; EF54 1 was rebuilt in 1944 and EF54 2 in 1945 to become EF14 1 and 2. Assigned to the Chūō Main Line, the EF14s were used to pull freight trains, although its traction was lower than other locomotives. From 1960, they became switching locomotives at Osaka Station until they were withdrawn in 1974.

No EF14s have been preserved.

Design[]

The EF14s featured large box-shaped bodies with large top-mounted headlights.

Specifications[]

The EF14s used a nose suspension drive system. MT17 traction motors were used on the locomotives. Compared to the EF52s they were based on they featured different traction motors with lower gear ratios.

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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