The was a B'B' wheel arrangement diesel-hydraulic locomotive type operated in Japan as a self-propelled rotary snowplough unit from 1961 to 2015 by the national railway company Japanese National Railways (JNR), and later by East Japan Railway Company (JR East). West Japan Railway Company (JR West), and Hokkaido Railway Company (JR Hokkaido).

Design Based on the earlier Class DD13 6th-batch locomotives, the Class DD14 was a single-end-cab design with a rotary snowplough unit at the cab end. It was the first diesel-powered rotary snowplough built by JNR. The locomotives had two diesel engines. One engine could be used for propulsion with the other driving the rotary snowplough unit, giving a snow-clearing capacity of approximately 3,000 tonnes per hour, or the unit could be operated in multiple with a second locomotive allowing both engines to drive the rotary snowplough, giving a snow-clearing capacity of approximately 4,000 tonnes per hour.

Variants DD14-0: 8 locomotives built between 1961 and 1965 by Kisha Seizō DD14-300: 35 locomotives built between 1966 and 1979 by Kisha Seizō and Kawasaki Heavy Industries

History By 2005, only nine locomotives remained in service, all operated by JR East. The last remaining locomotives in service, DD14 327 and 332, based at JR East's Nagaoka Depot, made their final run on 24 February 2014.

Fleet list

Locomotive number Manufacturer Year built Works no. Date withdrawn DD14 1 Kisha Seizō 1961 2861 ? DD14 2 Kisha Seizō 1961 2907 30 December 1985 DD14 3 Kisha Seizō 1961 2908 10 September 1996 DD14 4 Kisha Seizō 1965 3152 ? DD14 5 Kisha Seizō 1965 3153 ? DD14 6 Kisha Seizō 1965 3154 1 December 1994 DD14 7 Kisha Seizō 1965 3155 1 June 1995 DD14 8 Kisha Seizō 1965 3171 5 November 1998 DD14 301 Kisha Seizō 1966 3222 1 August 1994 DD14 302 Kisha Seizō 1966 3223 14 February 1990 DD14 303 Kisha Seizō 1966 3224 24 March 1993 DD14 304 Kisha Seizō 1966 3225 24 March 1993 DD14 305 Kisha Seizō 1966 3226 2 April 2009 DD14 306 Kisha Seizō 1966 3227 25 July 1998 DD14 307 Kisha Seizō 1968 3260 14 February 1990 DD14 308 Kisha Seizō 1969 3261 18 June 2009 DD14 309 Kisha Seizō 1969 3410 16 June 2000 DD14 310 Kisha Seizō 1969 3437 ? DD14 311 Kisha Seizō 1970 3486 31 March 2000 DD14 312 Kisha Seizō 1971 3528 30 December 1989 DD14 313 Kisha Seizō 1971 3541 17 March 1990 DD14 314 Kisha Seizō 1971 3542 7 April 2003 DD14 315 Kisha Seizō 1971 3543 25 December 1998 DD14 316 Kawasaki ? ? 29 March 1996 DD14 317 Kawasaki ? ? 30 May 2008 DD14 318 Kawasaki ? ? 17 March 1990 DD14 319 Kawasaki ? ? 17 December 1992 DD14 320 Kawasaki ? ? 24 March 1993 DD14 321 Kawasaki ? ? 24 March 1993 DD14 322 Kawasaki ? ? 28 January 1994 DD14 323 Kawasaki ? ? 27 September 1993 DD14 324 Kawasaki ? ? 13 July 1994 DD14 325 Kawasaki ? ? 23 April 2004 DD14 326 Kawasaki ? ? 14 June 2002 DD14 327 Kawasaki ? ? 2015 DD14 328 Kawasaki ? ? 28 September 2009 DD14 329 Kawasaki ? ? 29 March 1996 DD14 330 Kawasaki ? ? 1 November 1994 DD14 331 Kawasaki ? ? 3 July 2003 DD14 332 Kawasaki ? ? 2015 DD14 333 Kawasaki ? ? 21 June 2008 DD14 334 Kawasaki ? ? 21 May 2010 DD14 335 Kawasaki ? ? 31 March 2000

Preserved examples , three Class DD14 locomotives are preserved in Japan, with one locomotive sold to Taiwan High Speed Rail (THSR) in Taiwan. DD14 1: Preserved at the Mikasa Railway Museum in Mikasa, Hokkaido DD14 312: Preserved privately in Kitami, Hokkaido DD14 323: Preserved at the Otaru Museum in Otaru, Hokkaido DD14 331: Owned by THSR in Taiwan Popular model scale brand Kato has made replicas of the snowplow exclusive to Japan. thumb

Related classes Class DD15 snowplough propulsion unit Class DD16 snowplough propulsion unit Class DD18 snowplough propulsion unit Class DD19 snowplough propulsion unit Class DD53 snowplough propulsion unit Class DE15 snowplough propulsion unit

Classification

The DD14 classification for this locomotive type is explained below. D: Diesel locomotive D: Four driving axles 14: Locomotive with maximum speed of 85 km/h or less

References