JNR Class DD14

Class DD14

JR East DD14 327 and 332 in action in February 2012

Type and origin
Power type	Diesel-hydraulic
Builder	Kisha Seizo, Kawasaki Heavy Industries
Build date	1961-1979
Total produced	43

Specifications
UIC class	Bo-Bo
Gauge	1,067 mm (3 ft 6 in)
Train heating	None
Safety systems	ATS-SN

Performance figures
Maximum speed	70 km/h (45 mph)

Career
Operators	JNR JR East JR West JR Hokkaido
Locale	Japan
Last run	24 February 2015
Preserved	4
Disposition	Withdrawn

The Class DD14 (DD14形) was a Bo-Bo 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.^[1] It was the first diesel-powered rotary snowplough built by JNR. The locomotives had two 500 hp (370 kW) 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.^[1]

Snowplough detail of DD14 317, October 2001
A pair of DD14s with their snowplough units detached, March 2008

Variants

DD14-0: 8 locomotives built between 1961 and 1965 by Kisha Seizo^[1]
DD14-300: 35 locomotives built between 1966 and 1979 by Kisha Seiso and Kawasaki Heavy Industries^[1]

History

By 2005, only nine locomotives remained in service, all operated by JR East.^[2] 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.^[3]

Fleet list

Locomotive number	Manufacturer	Year built	Date withdrawn^[4]
DD14 1	Kisha Seizo	1961	?
DD14 2	Kisha Seizo	1961	30 December 1985
DD14 3	Kisha Seizo	1961	10 September 1996
DD14 4	Kisha Seizo	1965	?
DD14 5	Kisha Seizo	1965	?
DD14 6	Kisha Seizo	1965	1 December 1994
DD14 7	Kisha Seizo	1965	1 June 1995
DD14 8	Kisha Seizo	1965	5 November 1998
DD14 301	?	?	1 August 1994
DD14 302	?	?	14 February 1990
DD14 303	?	?	24 March 1993
DD14 304	?	?	24 March 1993
DD14 305	?	?	2 April 2009
DD14 306	?	?	25 July 1998
DD14 307	?	?	14 February 1990
DD14 308	?	?	18 June 2009
DD14 309	?	?	16 June 2000
DD14 310	?	?	?
DD14 311	?	?	31 March 2000
DD14 312	?	?	30 December 1989
DD14 313	?	?	17 March 1990
DD14 314	?	?	7 April 2003
DD14 315	?	?	25 December 1998
DD14 316	?	?	29 March 1996
DD14 317	?	?	30 May 2008
DD14 318	?	?	17 March 1990
DD14 319	?	?	17 December 1992
DD14 320	?	?	24 March 1993
DD14 321	?	?	24 March 1993
DD14 322	?	?	28 January 1994
DD14 323	?	?	27 September 1993
DD14 324	?	?	13 July 1994
DD14 325	?	?	23 April 2004
DD14 326	?	?	14 June 2002
DD14 327	?	?	2015
DD14 328	?	?	28 September 2009
DD14 329	?	?	29 March 1996
DD14 330	?	?	1 November 1994
DD14 331	?	?	3 July 2003
DD14 332	?	?	2015
DD14 333	?	?	21 June 2008
DD14 334	?	?	21 May 2010
DD14 335	?	?	31 March 2000

Preserved examples

As of 2012, three Class DD14 locomotives are preserved in Japan, with one locomotive sold to Taiwan High Speed Rail (THSR) in Taiwan.^[5]

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

DD14 1 at the Mikasa Railway Museum, May 2007
DD14 312 in August 2009
DD14 323 at the Otaru Railway Museum, July 2007
DD14 331 in Taiwan, August 2008

References

Wikimedia Commons has media related to JNR DD14.

1 2 3 4 JR全車輛ハンドブック1995 [JR Rolling Stock Handbook 1995] (in Japanese). Japan: Neko Publishing. 1995. p. 62.
↑ JR全車輌ハンドブック2005 [JR Rolling Stock Handbook 2005] (in Japanese). Japan: Neko Publishing. August 2005. p. 648. ISBN 4-7770-0382-5.
↑ Ito, Hisami (June 2015). さらばDD14 [Farewell DD14]. Japan Railfan Magazine (in Japanese). Japan: Koyusha Co., Ltd. 55 (650): 48–52.
↑ JR電車編成表 2013夏 [JR EMU Formations - Summer 2013] (in Japanese). Japan: Kotsu Shimbunsha. May 2013. p. 145. ISBN 978-4-330-37313-3.
↑ 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. p. 127. ISBN 978-4863206175.

Japanese Railway Locomotives

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Diesel locomotives	DD11 DD13 DD14 DD15 DD16 DD17 DD18 DD19 DD20 DD50 DD51 DD53 DD54 DE10 DE11 DE15 DE50 DF50 DF200 HD300

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