72 series

The72 series(72 hệ)trains were DC electric commuter trains operated byJapanese National Railways(JNR), and served as the basis for the101 series.The 72 series included the main production batch of 490 vehicles as well as 667 former63 seriescars converted into 72 series between 1953 and 1955. The last remaining trains were withdrawn in 1985, although some cars which were converted intomail coachesand experimental vehicles continued to remain in service until 1996.Most 72 series trains were converted to four-car 72–970 series trains, with the body based on the 103 series with the raised cab. The 72–970 series remained in service until 1985 when they were converted to 103–3000 series for theKawagoe Line.

72 series
A JNR 72 series train on theKabe LineatYokogawa Stationin July 1984
In service	1954–1985
Manufacturer	JNR Niitsu Works,Hitachi,Kawasaki Heavy Industries,Kinki Sharyo,Kisha Seizō,Nippon Sharyo,Teikoku Sharyo,Tokyu Car
Replaced	63 series
Constructed	1952–1958
Entered service	1954 1972 (72-970 series)
Number built	c.1,450 vehicles
Successor	101 series
Operators	JNR(1954–1985)
Lines served	Various
Specifications
Car length	20 m (65 ft 7 in)
Doors	4 per side
Maximum speed	95 km/h (59 mph) 100 km/h (62 mph) for mail coach conversions
Traction system	Resistor controlMT40
Electric system(s)	1,500 V DC overhead catenary
Current collector(s)	Pantograph
Safety system(s)	Originally not fitted, laterATS-B and ATS-S
Track gauge	1,067 mm(3 ft 6 in)

Variants

• 72 series - introduced in 1954, produced from 1952 to 1958
• 72–970 series - later converted to103-3000 series
• Kumoha 73 - cab car (about 330 vehicles built)

• 
  Interior view of Kuha 79446
• 
  Kawagoe Line 103–3000 series set 52 stabled at Haijima Station
• 
  Kumoha 73061

Operations

72 series trains were in service on theOme Linefrom 1961 until 1978,and on theKabe Linefrom 1976 until 1984.Type 73(73 hình)trains were in service on the Ome Line,Nambu Line,Yokohama Line,andTsurumi Line.

Preserved examples

• KuMoHa 73383:Privately preserved inSaeki,Hiroshima.Restored in October 2013, awaiting move toYanahara Fureai Mine Park.
• KuMoYa 90005:Stored at JR Central Hamamatsu Depot.
• KuMoYa 90801(partial): Preserved at the JR EastRailway Museumin Saitama.
• KuMoNi 83006:Used at the Toshiba factory inFuchu, Tokyo.

• 
  KuMoHa 73383 in Saeki, Hiroshima, June 2004
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  KuMoNi 83006 at theRTRIfacility in Kokubunji, Tokyo, October 2001
• 
  KuMoYa 90005 at JR Central Hamamatsu Works, August 2001