JNR Class DE11 - Misplaced Pages

"DE11" redirects here. For the highway in Delaware, see Delaware Route 11. Japanese diesel locomotive type

Class DE11

JR Freight DE11 2001 in January 2011

Type and origin
Power type	Diesel-hydraulic
Builder	Kawasaki Heavy Industries, Nippon Sharyo
Build date	1968–1979
Total produced	116

Specifications
Configuration:
• UIC	C-B
Gauge	1,067 mm (3 ft 6 in)
Length	14,150 mm (46 ft 5 in) (DE11-0/1000) 16,650 mm (54 ft 8 in) (DE11-2000)
Width	2,950 mm (9 ft 8 in)
Height	3,965 mm (13 ft 0.1 in)
Axle load	14 t
Loco weight	70 t
Fuel type	Diesel
Fuel capacity	2,500 l
Engine type	DML61ZB
Transmission	Hydraulic
MU working	N/A

Performance figures
Maximum speed	85 km/h (55 mph)
Power output	1,250 hp (930 kW) (DE11-0) 1,350 hp (1,010 kW) (DE11-1000/2000)
Tractive effort	21,000 kgf (210,000 N; 46,000 lbf)

Career
Operators	■ JNR (1968-1987) ■ JR Freight (1987-) ■ JR East (1987-)
Number in class	10 (as of 1 April 2016)
Disposition	In service

The Class DE11 (DE11形) is a five-axle C-B wheel arrangement diesel-hydraulic shunting locomotive type operated in Japan since 1968. A total of 116 locomotives were built between 1968 and 1979, and as of 1 April 2016, 10 locomotives remain in service, operated by East Japan Railway Company (JR East) and Japan Freight Railway Company (JR Freight).

Variants

A total of 116 locomotives were built between 1968 and 1979, divided into the following sub-classes.

Class DE11-0: 65 locomotives built between 1968 and 1970
Class DE11-1000: 46 locomotives built between 1970 and 1974 with uprated engines
Class DE11-1900: One locomotive built in 1975 with experimental noise-reduction features
Class DE11-2000: 4 locomotives built in 1979 with noise-reduction features

Design

The Class DE11 was developed from the Class DE10 locomotive design, with the train-heating steam generator and multiple-working equipment removed and replaced with concrete ballast weight to increase the axle load from 13 t to 14 t to improve adhesion for use in shunting work.

History

DE11-0

65 locomotives were built between 1968 and 1970.

DE11-1000

46 locomotives were built between 1970 and 1974 with their engines uprated from 1,250 hp (930 kW) to 1,350 hp (1,010 kW).

Locomotives DE11 1030, 1032, 1035, and 1046 were fitted with "SLC" (Shunting Locomotive Control) equipment to allow remote control at Musashino Marshalling Yard in Saitama Prefecture.

JR Freight DE11 1029 in July 2013
JR East DE11 1045 in February 2005

DE11-1900

One locomotive, numbered DE11 1901, was built in 1975, experimentally incorporating a number of features to reduce external noise for use in yards close to residential areas. Features included additional sound-insulating around the engine compartment and a noise reduction unit on the exhaust chimney.

DE11 1901 was withdrawn in 2000.

DE11-2000

Four Class DE11-2000 locomotives, numbered DE11 2001 to 2004 were built in 1979, incorporating some of the noise-reduction features tried out on DE11 1901. These locomotives also feature skirting to reduce noise. The locomotive length was increased from 14,150 mm (46 ft 5 in) to 16,650 mm (54 ft 8 in).

JR Freight DE11 2001 in April 2003, still in original JNR livery
JR Freight DE11 2001 in JR Freight livery in April 2011 showing the noise-reduction skirting

Fleet status

By 1 April 1995, 14 locomotives were still in service, with ten (nine DE11-1000 and DE11 1901) operated by East Japan Railway Company (JR East) and four (DE11-2000) operated by Japan Freight Railway Company (JR Freight)

As of 1 April 2016, 10 locomotives remain in service, with three (DE11-1000) operated by JR East and seven (three DE11-1000 and four DE11-2000) operated by JR Freight.

Classification

Main article: Japan Railways locomotive numbering and classification

The DE11 classification for this locomotive type is explained below.

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

References

^ 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. pp. 102–103. ISBN 9784863207271.
^ 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. 132–137. ISBN 978-4-533-05661-1.
JR全車輛ハンドブック1995 [JR Rolling Stock Handbook 1995] (in Japanese). Japan: Neko Publishing. 1995. p. 582.
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. ASIN B01N59AJPB. ISSN 0288-2337.

v t e Japanese National Railway Diesel Locomotives
Old types, prototypes	DB10 DC10 DC11 DD10
Four-axle	DD11 DD12 DD13 DD14 DD15 DD16 DD17 DD20 DD21 DD40 DD41 DD42 DD50 DD51 DD53 DD54 DD91 DD90 DD92
Five-axle	DE10 DE11 DE15 DE50
Six-axle	DF40 DF41 DF50 DF90 DF91 I DF91 II DF92 DF93
Standard gauge	911 912
Narrow gauge	ケDB10 ケDB11

v t e Japanese railway locomotives
Steam locomotives	150 160 500 860 900 950 1070 2120 3080 3150 3380 3800 3900 4100 4110 5100 5500 5700 6120 6200 6400 6700 7010 7100 7170 8150 8250 8620 8700 8900 9550 9600 9700 B20 C10 C11 C12 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 D50 D51 D52 D60 D61 D62 E10
Diesel locomotives	DB10 DB500 DC10 DC11 DD10 DD11 DD12 DD13 DD14 DD15 DD16 DD17 DD18 DD19 DD20 DD21 DD50 DD51 DD53 DD54 DD200 DE10 DE11 DE15 DE50 DF50 DF200 HD300 KiYa 143 KiYa 291 Seibu D15 Seibu D21 Ooikawa DB1 Ooikawa DB51 Ooikawa DD100 Ooikawa DD20
Electric locomotives	EB10 ED10 ED15 ED16 ED17 ED18 ED19 ED60 ED61 ED62 ED70 ED71 ED72 ED73 ED74 ED75 ED76 ED77 ED78 ED79 EF10 EF13 EF15 EF16 EF30 EF50 EF51 EF52 EF53 EF55 EF56 EF57 EF58 EF59 EF60 EF61 EF62 EF63 EF64 EF65 EF66 EF67 EF70 EF71 EF80 EF81 EH10 EH50 ED500 EF200 EF210 EF500 EF510 EH200 EH500 EH800 Chichibu DeKi 1 Chichibu DeKi 100 Chichibu DeKi 200 Chichibu DeKi 300 Chichibu DeKi 500 Meitetsu DeKi 300 Meitetsu DeKi 400 Meitetsu DeKi 600 Meitetsu Class EL120 Tobu ED4010 Tobu ED5000 Tobu ED5010 Tobu ED5060 Seibu E31 Seibu E851 Ooikawa E10 Ooikawa ED90 Toei E5000