E7 & W7 series
Series-E7-F19.jpg
E7 series set F19 on an Asama service in February 2021
In service15 March 2014; 8 years ago (2014-03-15) – Present (E7 series); 14 March 2015; 7 years ago (2015-03-14) – Present (W7 series)
ManufacturerHitachi, Kawasaki Heavy Industries, J-TREC (only E7 series), Kinki Sharyo (only W7 series)
ReplacedE2 series, E4 series (E7)
Constructed2013–
Number built660 vehicles (55 sets) (as of 1 July 2022)
Number in service540 vehicles (45 sets)
Number scrapped120 vehicles (8 E7 sets, 2 W7 sets; flood damage)
Formation12 cars per set
Fleet numbersF1–F36; F40-F44; W1–W14
Capacity934
Operator(s)JR East, JR West
Depot(s)Hakusan, Nagano, Niigata
Line(s) servedHokuriku Shinkansen, Jōetsu Shinkansen
Specifications
Car body constructionAluminium alloy
Car length26,000 mm (85 ft 4 in) (end cars)
25,000 mm (82 ft 0 in) (intermediate cars)
Width3,380 mm (11 ft 1 in)
Height3,650 mm (12 ft 0 in)
Doors2 sliding doors per side
Maximum speedDesign: 275 km/h (170.9 mph)
Service: 260 km/h (161.6 mph)
Weightapprox. 540 t
Power output12 MW
Acceleration1.6 km/(h⋅s) (0.99 mph/s)
Electric system(s)25 kV 50/60 Hz AC catenary
Current collector(s)Single-arm pantograph
Safety system(s)DS-ATC, RS-ATC
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Notes/references
Wikipedia blueribbon W.PNG
This train won the 58th Blue Ribbon Award in 2015.
EW7 series set W3 in August 2020
EW7 series set W3 in August 2020

The E7 series (E7系, E-nana-kei) and W7 series (W7系, Daburu-nana-kei) Shinkansen are Japanese high-speed train types operated by East Japan Railway Company (JR East) and West Japan Railway Company (JR-West), respectively. They were jointly developed.

The E7 series has operated since 15 March 2014.[1][2] It also operates on the Jōetsu Shinkansen following the March 2019 timetable revision.

The W7 series has operated on the Hokuriku Shinkansen since it was extended from Nagano to Kanazawa in March 2015.[2] A total of eleven 12-car W7 series sets (132 vehicles) have been built. The first W7 series train was delivered in April 2014.[3]

Design

Based on the earlier E2 series trains, the E7 series trains are designed with a "Japanese" theme inside and out, combining futuristic styling with traditional design elements overseen by industrial designer Ken Okuyama together with Kawasaki Heavy Industries.[4] Externally, the roof is finished in a "sky blue" colour, and the bodysides are "ivory white" with "copper" and "sky blue" lining.[5] The bodyside logos consist of a number "7" in silver stylized as an arrowhead, and include the lettering "East Japan Railway Company" or "West Japan Railway Company".[6]

Manufacture of the E7 series sets was shared between Hitachi in Kudamatsu, Yamaguchi and Kawasaki Heavy Industries in Kobe;[7] additionally the E7 in J-TREC in Yokohama, and W7 in Kinki Sharyo in Osaka.

The trains have a maximum design speed of 275 km/h (170 mph),[8] but operate at a maximum speed of 260 km/h (160 mph) on the Hokuriku Shinkansen, limited to 240 km/h (150 mph) on the Jōetsu Shinkansen tracks between Omiya and Takasaki, and to 110 km/h (70 mph) on the Tohoku Shinkansen tracks between Tokyo and Omiya.[2] Increased power output enables the trains to maintain speeds of at least 210 km/h (130 mph) on the steep gradients of the Hokuriku Shinkansen.[9]

Car 12 (Gran Class) is equipped with full active suspension, and the other cars are equipped with semi-active suspension.[8]

Operations


The trains entered regular passenger service from the start of the revised JR East timetable on 15 March 2014, with three trainsets introduced on Asama services on the Hokuriku Shinkansen (then still called the Nagano Shinkansen) between Tokyo and Nagano.[1] Initially, E7 series trainsets operated seven return Asama services daily, with a further four return workings added from 19 April 2014.[1]

Since 14 March 2015, with the opening of the Hokuriku Shinkansen extension from Nagano to Kanazawa, E7 series trainsets are also used on Hakutaka, Kagayaki, and Tsurugi services alongside the similar design JR West W7 series trains.[11]

Interior

The 12-car trains have accommodation in three levels of service: Gran Class, Green car, and ordinary-class cars, with a total seating capacity of 934.[2] Gran Class seating (car 12) is arranged 2+1 abreast with a seat pitch of 1,300 mm (51 in), Green car seating (car 11) is arranged 2+2 abreast with a seat pitch of 1,160 mm (46 in), and ordinary seating (cars 1 to 10) is arranged 3+2 abreast with a seat pitch of 1,040 mm (41 in).[8] AC power outlets are provided for each seat in all three classes.[8] The Gran class seats are supplied by Toyota Boshoku.[12] Car saloons and vestibule areas are equipped with security cameras.[5] Between October and December 2015, luggage racks are scheduled to be added at one end of each of the even-numbered ordinary class cars and also in Green car 11, by removing a pair of seats (1D and 1E). The luggage racks are to cater to the increased number of overseas tourists with suitcases and also passengers with ski and snowboard equipment in the winter season.[13]

E7 gallery

W7 gallery

Formations

The E7 series sets are numbered "F1" onward,[8] and the W7 series sets are numbered "W1" onward.[14] All sets consist of 10 motored intermediate cars with non-powered (trailer) end cars.[8] Car 11 provides Green car (first class) accommodation, and car 12 provides Gran Class luxury accommodation.[8] Sets are formed as shown below, with car 1 at the Tokyo end.[15]

E7 series
Car No. 1 2 3 4 5 6 7 8 9 10 11 12
Designation Tc M2 M1 M2 M1 M2 M1 M2 M1 M2 M1s Tsc
Numbering E723 E726-100 E725 E726-200 E725-100 E726-300 E725-200 E726-400 E725-400 E726-500 E715 E714
Weight (t) 41.3 44.7 46.1 45.2 46.4 45.2 46.5 45.2 46.4 45.0 45.6 44.5
Capacity 50 100 85 100 85 90 58 100 85 100 63 18
Facilities Toilets   Toilets, phone   Toilets   Wheelchair space, universal access toilet, phone   Toilets   Wheelchair space, universal access toilet Toilets
W7 series
Car No. 1 2 3 4 5 6 7 8 9 10 11 12
Designation Tc M2 M1 M2 M1 M2 M1 M2 M1 M2 M1s Tsc
Numbering W723-100 W726-100 W725-100 W726-200 W725-200 W726-300 W725-300 W726-400 W725-400 W726-500 W715-500 W714-500
Weight (t) 41.3 44.7 46.1 45.2 46.4 45.2 46.5 45.2 46.4 45.0 45.6 44.5
Capacity 50 100 85 100 85 90 58 100 85 100 63 18
Facilities Toilets   Toilets, phone   Toilets   Wheelchair space, universal access toilet, phone   Toilets   Wheelchair space, universal access toilet Toilets

Cars 3 and 7 are each equipped with a single-arm pantograph.[14][15]

Build histories

As of 1 April 2021, 31 E7 series sets and 11 W7 series sets have been built, with build details as follows.[16][17][further verification needed] Eight E7 series sets and two W7 series sets were withdrawn in 2019 following flood damage sustained during Typhoon Hagibis.[18]

E7 series fleet
Set No. Manufacturer Delivery date
F1 Kawasaki Heavy Industries 27 November 2013[19]
F2 Hitachi 25 December 2013[19]
F3 Hitachi 30 January 2014[19]
F4 Kawasaki Heavy Industries 24 February 2014[19]
F5 18 March 2014[19]
F6 2 June 2014[20]
F7 J-TREC Yokohama 26 June 2014[20]
F8 14 July 2014[20]
F9 27 August 2014[20]
F10 Hitachi 16 September 2014[20]
F11 J-TREC Yokohama 6 October 2014[20]
F12 10 November 2014[20]
F13 Hitachi 19 December 2014[20]
F14 19 January 2015[20]
F15 Kawasaki Heavy Industries 6 February 2015[20]
F16 Hitachi 8 April 2015[21]
F17 Kawasaki Heavy Industries 6 March 2015[20]
F18 J-TREC Yokohama 26 October 2015[21]
F19 Kawasaki Heavy Industries 3 April 2017[22]
F20 31 October 2018[23]
F21 Hitachi 20 November 2018[23]
F22 Kawasaki Heavy Industries 5 December 2018[23]
F23 Hitachi 8 September 2019[24]
F24 8 September 2019[24]
F25 Kawasaki Heavy Industries 7 October 2019[24]
F26 Hitachi 11 November 2019[24]
F27 24 January 2020[24]
F28 J-TREC Yokohama 25 January 2022[25]
F29 Kawasaki Heavy Industries 9 November 2020[26]
F30 3 December 2020[26]
F31 Hitachi 26 February 2021[26]
F32 Kawashige 11 May 2021[25]
F33 Hitachi 17 August 2021[25]
F34 6 October 2021[25]
F35 J-TREC Yokohama 9 November 2021[25]
F36 Kawashige 21 October 2021[25]
F40 Hitachi 12 May 2021[25]
F41 4 June 2021[25]
F42 Kawashige 7 June 2021[25]
F43 J-TREC Yokohama 2 August 2021[25]
F44 Hitachi 14 January 2022[25]
W7 series fleet
Set No. Manufacturer Delivery date
W1 Kawasaki Heavy Industries 30 April 2014[19]
W2 Hitachi 5 June 2014[19]
W3 Kawasaki Heavy Industries 30 June 2014[19]
W4 Hitachi 18 July 2014[20]
W5 Kawasaki Heavy Industries 21 August 2014[20]
W6 11 September 2014[20]
W7 Kinki Sharyo 27 September 2014[20]
W8 Hitachi 15 October 2014[20]
W9 3 November 2014[20]
W10 Kinki Sharyo 26 December 2014[20]
W11 Hitachi 17 September 2015[21]
W12 29 October 2021[25]
W13 8 December 2021[25]
W14 31 March 2022[25]

History

Cars of the first set, W1, being unloaded at Kanazawa Port in April 2014
Cars of the first set, W1, being unloaded at Kanazawa Port in April 2014

In December 2011, the Mainichi Shimbun reported that JR East was considering developing new E7 series 10-car sets based on the existing E2 series design for use on Hokuriku Shinkansen services.[27] In January 2012, the head of JR-West's Kanazawa Division revealed that new trains for the Hokuriku Shinkansen would be developed in conjunction with JR East, and that test running would need to be conducted during the winter season a year before the line opening to thoroughly test the ability of the trains to cope with snowy conditions.[28] Details of the new trains were formally announced jointly by JR East and JR West on 4 September 2012.[5]

The first E7 series train was delivered to Sendai Depot in November 2013, and shown off to the media on 28 November.[29] Night-time testing commenced in December 2013 on the Nagano Shinkansen, with daytime test-running between Nagano and Tokyo starting on 8 January 2014.[30] The design of the logo to be applied to the sides of cars 1 and 12 was officially unveiled in February 2014.[6]

The first three trains, sets F1 to F3, entered regular passenger service from the start of the revised JR East timetable on 15 March 2014.[31] The entire fleet of 17 sets, numbered F1 to F17, was delivered by the start of the 14 March 2015 timetable revision, although sets F16 and F17 did not enter revenue service until after this date.[31]

The first W7 series train was delivered from Kawasaki Heavy Industries in Kobe to Hakusan Depot in Hakusan, Ishikawa in April 2014.[3] Test-running on the Hokuriku Shinkansen began on 5 August 2014, initially at low speed, between Kanazawa and Jōetsumyōkō.[32]

In April 2015, JR East announced that it was ordering an additional E7 series set to be introduced from autumn 2015, replacing the remaining E2 series trainsets used on regularly scheduled Hokuriku Shinkansen Asama services.[33]

In May 2015, the W7 series and E7 series were awarded the 2015 Blue Ribbon Award, presented annually by the Japan Railfan Club.[34] A presentation ceremony was held at JR West's Hakusan Depot on 24 October 2015.[35]

On 12 October 2019, eight E7 series and two W7 series trains were damaged due to floodwaters from Typhoon Hagibis, while they were stored at JR East Nagano Shinkansen Vehicle center.[36] The sets were scrapped shortly thereafter.[18][37][38]

In November 2021, JR East demonstrated autonomous operation with an E7 set in Niigata prefecture; 5km between Niigata Station and Niigata Shikansen Stock Yard. They started testing on 29 October.[39]

See also

References

  1. ^ a b c 3月15日ダイヤ改正と各地の話題 [15 March timetable revision and topics from around the regions]. Tetsudō Daiya Jōhō Magazine (in Japanese). Vol. 43, no. 361. Japan: Kōtsū Shimbun. May 2014. p. 12.
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  3. ^ a b W7系、30日に石川初走行 白山車両所 [W7 runs for first time inside Hakusan Depot]. The Hokkoku Shimbun (in Japanese). Japan. 24 April 2014. Archived from the original on 30 August 2014. Retrieved 27 May 2014.
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