JNR Class DE10

The Class DE10 (DE10形) is a class of Japanese C-B wheel arrangement diesel-hydraulic locomotives. 708 locomotives were built between 1966 and 1978.[1] As of 1 April 2016, 138 locomotives remained in operation.[2]

"DE10" redirects here. For the highway in Delaware, see Delaware Route 10.

Class DE10
JR East DE10 1765 in September 2015
Type and origin Power type Diesel-hydraulic Builder Kisha Seizo, Nippon Sharyo Build date 1966 - 1978 Total produced 708
Specifications Configuration: ​  • UIC C'B' Gauge 1,067 mm (3 ft 6 in) Wheel diameter 860 mm Length 14,150 mm Width 2,950 mm Height 3,965 mm Loco weight 65 tons Transmission Hydraulic
Performance figures Maximum speed 95 km/h (60 mph) Power output 1,250 hp, 1,350 hp (DE10-1000 onward)
Career Operators JNR, JR Hokkaido, JR East, JR Central, JR West, JR Shikoku, JR Kyushu, JR Freight Number in class 138 (as of 1 April 2016) Disposition Still operational

Variants

DE10-0 subclass

158 DE10-0 locomotives were built with steam heating boilers for passenger use.

None of this subclass remains in use on JR, but several examples operate on private railways. DE10 1 is preserved at JR Shikoku's Tadotsu depot.

DE10-500 subclass

74 DE10-500 locomotives were built from 1968 with concrete ballast in place of the steam heating boilers for freight use. None of this subclass remains in use on JR, but several examples operate on private railways.

DE10-900 subclass

One prototype locomotive, DE10 901, was built in 1967 as a heavy shunting locomotive with ballasting increasing the weight to 70 tonnes. This formed the basis for the Class DE11 design.

DE10-1000 subclass

210 DE10-1000 locomotives were built from 1969 with steam heating boilers and uprated DML61ZB engines offering 1,350 hp.

DE10-1500 subclass

265 DE10-1500 locomotives were built from 1969 with uprated DML61ZB engines and concrete ballast in place of the steam heating boilers for freight use.

DE10 1557 in May 2017

DE10-3000/3500 subclass

DE10 3001 in September 2015

DE10 3510 in April 2013

JR Freight shunting locomotives rebuilt in 2009 from former JR East Class DE15 snow-plough locomotives. The conversion histories and former identities of this sub-class are as follows.[3]

Loco No.	Former No.	Date built	Manufacturer	Date converted	Date withdrawn
DE10 3001	DE15 1001	6 December 1971	Nippon Sharyo	5 June 2009
DE10 3501	DE15 1510	October 1973	Nippon Sharyo	8 May 2009
DE10 3502	DE15 1516	16 December 1975	Nippon Sharyo	7 April 2009	25 November 2009
DE10 3503	DE15 2567[Note 1]	14 January 1976	Nippon Sharyo	29 May 2009	FY2011
DE10 3504	DE15 1522	2 March 1976	Nippon Sharyo	24 April 2009	FY2011
DE10 3505	DE15 1523	9 March 1976	Nippon Sharyo	6 April 2009
DE10 3506	DE15 1529	4 October 1976	Kawasaki Heavy Industries	15 May 2009
DE10 3507	DE15 1530	7 October 1976	Kawasaki Heavy Industries	24 June 2009
DE10 3508	DE15 1536	9 September 1977	Kawasaki Heavy Industries	7 April 2009
DE10 3509	DE15 2505	21 October 1977	Nippon Sharyo	18 May 2009
DE10 3510	DE15 2506	28 October 1977	Nippon Sharyo	19 May 2009
DE10 3511	DE15 1539	10 November 1978	Kawasaki Heavy Industries	23 April 2009
DE10 3512	DE15 2513	15 November 1978	Kawasaki Heavy Industries	12 May 2009
DE10 3513	DE15 2524	20 November 1980	Kawasaki Heavy Industries	27 April 2009

1. Originally built as DE15 1517.

Preserved examples

• DE10 1: Previously stored at JR Shikoku Tadotsu depot, and scheduled to be preserved at the Shikoku Railway Heritage Museum from July 2014[4]

DE10 503 preserved at the Otaru Museum in Otaru, Hokkaido

Related classes

• Class DE11 heavy shunting locomotive
• Class DE15 snowplough propulsion unit

Classification

Main article: Japan Railways locomotive numbering and classification

The DE10 classification for this locomotive type is explained below.

• D: Diesel locomotive
• E: Five driving axles
• 10: Locomotive with maximum speed of 85 km/h or less

References

• JR全車輌ハンドブック2006 [JR Rolling Stock Handbook 2006]. Japan: Neko Publishing. 2006. ISBN 978-4-7770-0453-9.

1. 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]. Japan: Sankaido. ISBN 978-4-381-10338-3.
2. 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)]. Railway Journal (in Japanese): 36–38. ASIN B01N59AJPB. ISSN 0288-2337.
3. Shibata (July 2015). JR会社間の譲渡車両 [Rolling stock transferred between JR companies]. Japan Railfan Magazine (in Japanese). Vol. 55 no. 651. Japan: Koyusha Co. p. 128.
4. "DE10 1も伊予西条へ" [DE10 1 also moved to Iyo Saijo]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 23 March 2014. Retrieved 23 March 2014.