E6 series
E6 series set Z14 in May 2022
In service	16 March 2013; 12 years ago (2013-03-16) – present
Manufacturer	Hitachi,Kawasaki Heavy Industries
Replaced	E3-0 series
Constructed	2010–2014
Number built	168 vehicles (24 sets)
Number in service	161 vehicles (23 sets)
Number scrapped	7 vehicles (1 set; set Z9;earthquake damage)
Formation	7 cars per trainset
Fleet numbers	Z1–Z24
Capacity	338 (315 Standard + 23 Green)
Operators	JR East
Depots	Akita
Lines served	Tōhoku Shinkansen,Akita Shinkansen
Specifications
Car body construction	Aluminium alloy
Train length	148.65 m (487 ft 8 in)
Car length	23,075 mm (75 ft 8.5 in) (end cars) 20,500 mm (67 ft 3 in) (intermediate cars)
Width	2,945 mm (9 ft 7.9 in)
Height	3,650 mm (12 ft 0 in)
Doors	One per side, plus one cab access door per side per end car
Maximum speed	Tōhoku Shinkansen: 320 km/h (200 mph) Akita Shinkansen: 130 km/h (81 mph)
Weight	306.5 t (302long tons; 338short tons)
Traction system	MT207 AC Motor (300 kW)
Power output	6,000 kW (8,046 hp)
Acceleration	1.71 km/(h⋅s) (1.06 mph/s) (shinkansen) 2.0 km/(h⋅s) (1.2 mph/s) (conventional)
Electric system(s)	25 kV AC, 50 Hzoverhead catenary (Tōhoku Shinkansen) 20 kV AC, 50 Hz overhead catenary (Akita Shinkansen)
Current collection	Pantograph
UIC classification	Bo'Bo'+2'2'+Bo'Bo'+Bo'Bo'+Bo'Bo'+2'2'+Bo'Bo'
Bogies	DT210 (motored), TR7009 (trailer)
Safety system(s)	DS-ATC, RS-ATC,ATS-P
Multiple working	E5 series,H5 series
Track gauge	1,435 mm (4 ft 8+1⁄2 in)standard gauge

TheE6 series (E6系) is a JapaneseShinkansen high-speed train type operated byEast Japan Railway Company (JR East) onKomachi "mini-shinkansen" services on theTōhoku Shinkansen andAkita Shinkansen from Tokyo toAkita since 16 March 2013. A pre-series set was delivered in June 2010 for extensive testing, with 23 full-production sets delivered between November 2012 and spring 2014.^[1]

The 7-car E6 series trains operate in conjunction withE5 series orH5 series (since March 2016) 10-car trains, initially on just four return services daily from 16 March 2013.^[2] They replaced all of the previousE3 series trains onKomachi services by 15 March 2014.^[3]

Technology incorporated in these trains is derived from the experimentalFastech 360Z train previously tested by JR East. The E6 series trains are formed of seven cars, to provide the same seating capacity as six-car E3 series trains, due to the reduced seating capacity in the end cars. All cars featureactive suspension withtilting up to 1.5 degrees.^[4]

The pre-series train, numbered "S12" (later becoming "Z1"), was formed as follows, with car 11 at the Tokyo end and car 17 at the Morioka end.^[5]

• Car 11 provides Green (first class) accommodation.
• Cars 12 and 16 are each fitted with a single-armpantograph.^[6] Like the E5 series, only one pantograph is normally used in service.
• Cars 11 to 14 were built byKawasaki Heavy Industries, and cars 15 to 17 were built byHitachi.^[6]

• 
  E611-1 (car No. 11)
• 
  E628-1 (car No. 12)
• 
  E625-1 (car No. 13)
• 
  E625-101 (car No. 14)
• 
  E627-1 (car No. 15)
• 
  E629-1 (car No. 16)
• 
  E621-1 (car No. 17)

The full-production trains, numbered "Z2" onward, are formed as follows, with car 11 at the Tokyo end and car 17 at the Morioka end.^[7]

• Car 11 provides Green (first class) accommodation.
• Cars 12 and 16 are each fitted with a single-armpantograph.^[7]

The overall styling was overseen by Japanese industrial designerKen Okuyama, and is intended to evoke images of theNamahage demons andkantō festival lanterns for whichAkita Prefecture is famous.^[8] The main body colour is "Hiun" (飛雲) white with crimson roof and "arrow silver" bodyside stripe. The end cars are 23,075 mm (75 ft 8.5 in) long with the tapered nose accounting for approximately 13 m (compared with approximately 6 m for the E3 series).^[4]

The new trains feature similar improvements to passenger accommodation as featured on the E5 series trains, including AC power outlets, and security cameras investibule areas. Seating in both Standard class and Green (first class) cars is in the standard 2+2 arrangement for mini-shinkansen trains.^[7] Seat pitch is 1,160 mm (46 in) in Green class and 980 mm (39 in) in Standard class, the same as for the E3 series trains.^[4] Cars 12, 13, 14, and 16 are equipped with toilets.^[7] The toilet in car 12 isuniversal access.^[7]

• 
  Green-class car (car 11) interior
• 
  Standard-class car (car 13) interior
• 
  An AC power outlet in a standard-class car
• 
  Wheelchair-accessible toilet in car 12

The pre-series set, S12, was delivered to Sendai Depot in June 2010,^[9] and formally accepted by JR East on 8 July.^[6] Test running commenced on the Tohoku Shinkansen in July 2010.^[10]

The first full-production set was delivered in November 2012, with production continuing until spring 2014.^[1]

Revenue service commenced on 16 March 2013 on newSuper Komachi services, running at a maximum speed of 300 km/h (185 mph) on the Tohoku Shinkansen.^[2] From 15 March 2014, the maximum speed was raised to 320 km/h (200 mph) on the Tohoku Shinkansen, with the maximum speed on the Akita Shinkansen tracks remaining at 130 km/h (80 mph), allowing journey times between Tokyo and Akita to be reduced by an average of 12 minutes.^[3] The service name was also returned to simplyKomachi.^[3]

In May 2014, the E6 series was awarded the 2014Laurel Prize, presented annually by the Japan Railfan Club.^[11] The award presentation ceremony was held at Akita Station on 8 November 2014.^[12]

As of 1 October 2014^[update], 24 sets were in service, as shown below.^[13]

While the first sets from both Hitachi and Kawasaki Heavy Industries were delivered by sea to Sendai, set Z9 was delivered from the Kawasaki Heavy Industries factory in Kobe by rail to Akita Depot over three days from 31 May to 2 June 2013, mounted on temporary narrow-gauge (1,067 mm gauge) bogies and hauled by freight locomotives.^[15] This was followed by set Z11 from 21 to 23 June 2013.^[16]

E6 series set Z9, coupled withH5 series set H2 operating asYamabiko 223 bound forSendai derailed during the2022 Fukushima earthquake while traveling betweenFukushima andShiroishi-Zaō stations. There were no injuries on board.^[17][18]

• List of high speed trains

Wikimedia Commons has media related toE6 series.

• JR East E6 series(in Japanese)
• JR East E6 series (Japan Railfan Magazine Online)(in Japanese)

• East Japan Railway Company
• Shinkansen train series
• Train-related introductions in 2013
• Tilting trains
• Hitachi multiple units
• Kawasaki multiple units
• Passenger trains running at least at 300 km/h in commercial operations
• 25 kV AC multiple units
• 20 kV AC multiple units

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