Class DD16
JR East DD16 11 in service in May 2009
Type and origin
Power typeDiesel-hydraulic
BuilderJNR (Nagano), Kawasaki Heavy Industries, Nippon Sharyo
Build date1971–1975
Total produced65
Rebuild date1979-1983
Number rebuilt4
Specifications
Configuration:
​
 • UICBo’Bo’
 • CommonwealthBo-Bo
Gauge1,067 mm (3 ft 6 in)
BogiesDT113
Wheel diameter860 mm (2 ft 10 in)
Length11,840 mm (38 ft 10 in)
Width2,805 mm (9 ft 2.4 in)
Height3,925 mm (12 ft 10.5 in)
Axle load12 t
Loco weight48.0 t
Fuel typeDiesel
Fuel capacity1,550 l
Engine typeDML61Z
TransmissionHydraulic
Performance figures
Maximum speed75 km/h (45 mph)
Power output800 hp (600 kW)
Tractive effort14,400 kgf (141,000 N; 32,000 lbf)
Career
Operators
Number in class1 (as of 1 April 2016)
Delivered1971
Preserved7
DispositionIn service

The Class DD16 (DD16形) is a four-axle Bo-Bo wheel arrangement diesel-hydraulic locomotive type operated in Japan since 1972. A total of 65 locomotives were built between 1971 and 1975, and as of 1 April 2016, one locomotive remains in service, operated by East Japan Railway Company (JR East).

Variants

A total of 65 locomotives were built between 1971 and 1975.[1]

  • Class DD16-0: 65 locomotives built between 1971 and 1975
  • Class DD16-300: 4 locomotives converted from DD16-0 locomotives between 1979 and 1983 to become self-propelled snowplough units[2]

Design

The Class DD16 was designed to replace the Class C12 and C56 steam locomotives on non-electrified rural lines where locomotives with a low axle load were required.[2] The design featured an offset centre-cab arrangement using the same DML61Z diesel engine used in the Class DD51 locomotives, derated from 1,000 hp (750 kW) to 800 hp (600 kW).[2]

History

The first two locomotives, DD16 1 and 2, were built at the Japanese National Railways (JNR) Nagano factory, and these were tested on the Koumi Line and Iida Line.[1]

Between 1979 and 1983, four locomotives (DD16 2, 5, 4, and 13) were converted at JNR's Nagano and Matto workshops to become self-propelled snowplough units, numbered DD16 301 to 304, with the addition of bogie snowplough units on either end.[3]

With the closure of may rural lines and discontinuation of rural freight services in the 1980s, many of the class were withdrawn from operation and scrapped.[1]

With the privatization of JNR in April 1987, just ten Class DD16 locomotives remained in service, transferred to operation by JR Group operating companies.[4]

By 1 April 1995, seven locomotives were still in service, with four (DD16-0 and DD16-300) operated by East Japan Railway Company (JR East), two (DD16-0) operated by Kyushu Railway Company (JR Kyushu), and one (DD16-300) operated by West Japan Railway Company (JR West).[3]

As of 1 April 2016, one locomotive, DD16 11, remains in service, operated by JR East.[5]

Preserved examples

As of 2014, seven Class DD16 locomotives are preserved.[6]

Classification

The DD16 classification for this locomotive type is explained below.

  • D: Diesel locomotive
  • D: Four driving axles
  • 16: Locomotive with maximum speed of 85 km/h or less

References

  1. 1 2 3 Inoue, Kōichi (1999). 国鉄機関車事典: 蒸気・電気・ディーゼル機関車66形式 国鉄機関車辞典 [JNR Locomotive Encyclopedia] (in Japanese). Japan: Sankaido. pp. 172–173. ISBN 978-4-381-10338-3.
  2. 1 2 3 Ishii, Yoshitaka (2004). Dd51物語: 国鉄ディーゼル機関車2400両の開発と活躍の足跡 DD51物語 [The DD51 Story] (in Japanese). Tokyo, Japan: JTB Can Books. pp. 139, 188. ISBN 978-4-533-05661-1.
  3. 1 2 JR全車輛ハンドブック1995 [JR Rolling Stock Handbook 1995] (in Japanese). Japan: Neko Publishing. 1995. pp. 63–64.
  4. ↑ Jr機関車カタログ: Jr7社の現有30形式を詳しく解說 JR機関車カタログ [JR Locomotive Catalogue] (in Japanese). Japan: Ikaros Publications Ltd. 20 June 2013. p. 91. ISBN 9784863207271.
  5. ↑ Miyahara, Masakazu, ed. (December 2016). 国鉄最終章LAST (鉄道ジャーナル2017年2月号別冊) [JNR - The Final Chapter (Railway Journal February 2017 Extra issue)]. Tetsudō Jānaru (in Japanese). Japan: Railway Journal: 39–41. ASIN B01N59AJPB. ISSN 0288-2337.
  6. ↑ Sasada, Masahiro (25 November 2014). 国鉄&jr 保存車大全 2015-2016 国鉄&JR保存車大全2015-2016 [JNR & JR Preserved Rolling Stock Complete Guide 2015-2016] (in Japanese). Tokyo, Japan: Ikaros Publications Ltd. p. 123. ISBN 978-4863209282.
  7. ↑ Shibata, Togo (February 2016). 2016年「津山まなびの鉄道館」としてリニューアルオープン [Reopening in 2016 as "Tsuyama Railroad Educational Museum!]. Tetsudo Daiya Joho Magazine (in Japanese). Vol. 45, no. 382. Japan: Kotsu Shimbun. pp. 46–47.
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