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The JNR Class DD17 was a diesel-hydraulic locomotive operated by the Japanese National Railways from 1983 to 1991.

History[]

The DD17 was designed as a dedicated snow-clearing locomotive, being one of a number of dedicated snow-clearing locomotives operated by the JNR. Intended to replace the DD14s used for snow clearing purposes, the DD17 was designed to be more powerful than the DD14s and could run on its own without assistance. Due to JNR's financial situation at the time it was not wise to manufacture a new locomotive for this purpose; as a result, DD51 507 was modified at JNR's Takatori Works in 1983. DD17 1 was completed on 29 March 1983 and stationed at Kōriyama Rolling Stock Depot.

Mainly used for snow removal when introduced, there were fewer opportunities for DD17 1 to be used due to a decrease in snowfall and the closure of various local lines. JR East took over ownership of DD17 1 after the JNR was privatized and split in 1987; it would be used on the Itaya Pass but caused two derailment incidents involving itself, causing major delays. After this, the locomotive was moved to Aizu-Wakamatsu and operated on the Ōu Main Line; when that line was retracked, the locomotive was rebuilt as the DD19.

Design[]

The DD17 featured a semi-streamlined design, being painted in red with silver accents.

Specifications[]

The DD17 was fitted with two V12 prime movers, designated the DML61Z. Much of the locomotive's equipment is reused from DD51 507 which the locomotive was converted from.

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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