JNR Class EF57 - Misplaced Pages

Japanese locomotive class

This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.
Find sources: "JNR Class EF57" – news · newspapers · books · scholar · JSTOR (July 2016)

Class EF57

Preserved EF57 7 in October 2008

Type and origin
Power type	Electric
Builder	Hitachi, Kawasaki
Build date	1939–1943

Specifications
Configuration:
• AAR	2-C+C-2
• UIC	(2'Co)(Co2')
Gauge	1,067 mm (3 ft 6 in)
Driver dia.	1,250 mm (49.21 in)
Length	19,920 mm (65 ft 4+1⁄4 in)
Width	2,810 mm (9 ft 2+5⁄8 in)
Height	4,091 mm (13 ft 5+1⁄8 in)
Loco weight	110.82 t (109.07 long tons; 122.16 short tons)
Electric system/s	1,500 V DC overhead line
Current pickup(s)	Pantograph
Traction motors	DC

Performance figures
Maximum speed	95 km/h (59 mph)
Power output	1.56 MW (2,090 hp)
Tractive effort	9,500 kgf (93,160 N; 20,940 lbf)

Career
Operators	JNR
Number in class	172
Disposition	One preserved, remainder scrapped

The Class EF57 (EF57形) of 2-C+C-2 wheel arrangement DC electric locomotives was a development of the previous JNR Class EF56. 15 Class EF57s were built between 1939 and 1943 by Hitachi and Kawasaki.

Introduced on Tokaido Line passenger services, they were seen at the head of expresses such as the Tsubame, complete with train headboard mounted precariously on the front of the cab decks. With the introduction of the newer semi-streamlined Class EF58s on Tokaido Line services, the EF57s were transferred to the Tohoku Main Line. At the same time, their steam-heating boilers were removed and replaced by electric-heating generators.

The class remained in use on long-distance express trains on the Tohoku Main Line until the 1970s.

Preserved examples

Only one member of the class is preserved: EF57 7 in a park in Utsunomiya, Tochigi Prefecture.

References

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. 96–97. ISBN 978-4-381-10338-3.

Japanese National Railway Electric Locomotives

Old types

Two-axle	EB10/AB10
Four-axle	ED10 ED11 ED12 ED13 ED14 ED15 ED16 ED17 ED18 ED19 ED20 ED21 ED22 ED23 ED24 ED25 I ED26 I ED27 I ED28 I ED29 I ED30→ED25 II ED31 ED32 ED33→ED26 II ED34→ED27 II ED35→ED28 II ED36 ED37→ED29 II ED38 ED50 · ED51 · ED52 ED53 ED54 ED55 (proposed) ED56 ED57 ケED10
Six-axle	EF10 EF11 EF12 EF13 EF14 EF15 EF16 EF18 EF50 EF51 EF52 EF53 EF55 EF56 EF57 EF58 EF59
Eight-axle	EH10 EH50
Abt-type	EC40 ED40 ED41 ED42

New types

Four-axle DC	ED60 ED61 ED62 ED63/ED95
Six-axle DC	EF60 EF61 EF62 EF63 EF64 EF65 EF66/EF90 EF67
Four-axle AC	ED44/ED90 · ED45/ED91 ED70 ED71 ED72 ED73 ED74 ED75 ED76 ED77/ED93 ED78/ED94 ED79
Six-axle AC	EF70 EF71
AC/DC 2-system	ED30 II ED46/ED92 EF30 EF80 EF81

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

Categories:

Preserved examples

See also

References