Class DD16
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The 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 , one locomotive remains in service, operated by
East Japan Railway Company The is a major passenger railway company in Japan and is the largest of the seven Japan Railways Group companies. The company name is officially abbreviated as JR-EAST or JR East in English, and as in Japanese. The company's headquarters are ...
(JR East).


Variants

A total of 65 locomotives were built between 1971 and 1975. * 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


Design

The Class DD16 was designed to replace the
Class C12 The Class C12 is a type of 2-6-2T steam locomotive built by the Japanese Government Railways and the Japanese National Railways from 1932 to 1947. A total of 282 Class C12 locomotives were built and designed by Hideo Shima . Service outside J ...
and C56 steam locomotives on non-electrified rural lines where locomotives with a low axle load were required. The design featured an offset centre-cab arrangement using the same DML61Z diesel engine used in the Class DD51 locomotives, derated from to .


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. 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. File:JRE-DD16-300.jpg, Snowplough unit DD16 303 in service on the Oito Line in February 1991 With the closure of may rural lines and discontinuation of rural freight services in the 1980s, many of the class were withdrawn from operation and scrapped. With the privatization of JNR in April 1987, just ten Class DD16 locomotives remained in service, transferred to operation by JR Group operating companies. By 1 April 1995, seven locomotives were still in service, with four (DD16-0 and DD16-300) operated by
East Japan Railway Company The is a major passenger railway company in Japan and is the largest of the seven Japan Railways Group companies. The company name is officially abbreviated as JR-EAST or JR East in English, and as in Japanese. The company's headquarters are ...
(JR East), two (DD16-0) operated by
Kyushu Railway Company The , also referred to as , is one of the seven constituent companies of Japan Railways Group (JR Group). It operates intercity rail services within Kyushu, Japan and the JR Kyushu Jet Ferry Beetle hydrofoil service across the Tsushima Strait ...
(JR Kyushu), and one (DD16-300) operated by West Japan Railway Company (JR West). File:DD1620 Omiya Works 19991023.jpg, JR East DD16 20 in October 1999 at Omiya Works, where it was used as a works shunter, repainted in "Hokutosei" blue livery File:DD16 36 Omiya Works 19940810.jpg, JR East DD16 36 in August 1994 at Omiya Works, where it was used as a works shunter, repainted in "Hokutosei" maroon livery File:DD16 62.jpg, JR Kyushu DD16 62 at Kagoshima Depot in August 1998 , one locomotive, DD16 11, remains in service, operated by JR East.


Preserved examples

, seven Class DD16 locomotives are preserved. * DD16 1: Preserved at Nagano General Rolling Stock Center in Nagano * DD16 7: Preserved in operational condition at
Wakasa Station is a passenger railway station located in the town of Wakasa, Yazu District, Tottori Prefecture, Japan. It is operated by the third sector company Wakasa Railway. Lines Wakasa Station is a terminus of the Wakasa Line, and is located 19. ...
on the
Wakasa Railway The is a Japanese railway line in Tottori Prefecture operated by the third-sector operating company . The line connects Kōge Station in Yazu with Wakasa Station in Wakasa. It is the only railway line operated by the Wakasa Railway. The third-s ...
* DD16 15: Preserved at the Mikasa Railway Parek in Mikasa, Hokkaido * DD16 17: Preserved at the Otaru Museum in Otaru, Hokkaido * DD16 31: Preserved inside the "Memorial Ship Hakkoda" in
Aomori is the capital city of Aomori Prefecture, in the Tōhoku region of Japan. , the city had an estimated population of 278,964 in 136,457 households, and a population density of 340 people per square kilometer spread over the city's total area of ...
* DD16 64: Preserved in Nōgata, Fukuoka * DD16 303: Preserved in Nagano * DD16 304: Preserved at the Tsuyama Railroad Educational Museum in Tsuyama, Okayama. File:DD16 wakasa.jpg, DD16 7 on the Wakasa Railway File:JNR DD16 15.JPG, DD16 15 at the Mikasa Railway Park in May 2007 File:DD16 17 Otaru Museum 20090830 (1).jpg, DD16 17 at the Otaru Museum in August 2009 File:Trains in Hakkoda-maru.JPG, DD16 31 inside the "Memorial Ship Hakkoda" in Aomori in September 2014 File:DD16 20 THSRMWS 1.jpg, DD16 20 in Taiwan in August 2009, where it was used on the Taiwan High Speed Line


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

{{Jrkyushuloco Diesel locomotives of Japan DD16 DD16 DD16 Bo-Bo locomotives 1067 mm gauge locomotives of Japan Railway locomotives introduced in 1971 Kawasaki diesel locomotives Nippon Sharyo locomotives