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The Class E926 (E926形) also known as the East-i, is a high-speed diagnostic train used on JR East's Shinkansen lines. Entering service in 2001, it is based off the E3 series and carries out line inspections at a maximum speed of 275 km/h (171 mph). It operates on the Jōetsu Shinkansen, the Hokuriku Shinkansen, the Tōhoku Shinkansen and it's two mini-shinkansen branch lines, the Yamagata Shinkansen and Akita Shinkansen; the train also operates on the Hokkaido Shinkansen, owned by JR Hokkaido, as well as sections of the Hokuriku Shinkansen owned by JR West. Similar types of diagnostic trains called Doctor Yellow operate on the Tokaido Shinkansen and San'yo Shinkansen.
Class E926 "East i" | |
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Manufacturer | Tokyu Car Corporation |
Constructed | 2001 |
Entered service | 2001 |
Scrapped | 2015 (E925)[citation needed] |
Number built | 7 vehicles |
Number in service | 6 vehicles (1 set) |
Number scrapped | 1 vehicle |
Formation | 6 cars per trainset |
Operators | JR East, JR Hokkaido |
Lines served | Hokuriku Shinkansen, Jōetsu Shinkansen, Tōhoku Shinkansen, Hokkaido Shinkansen |
Specifications | |
Train length | 125.6 m (412 ft) |
Car length | 20 m (66 ft) or 22.8 m (75 ft) |
Width | 2.94 m (9.6 ft) |
Height | 4.29 m (14.1 ft) |
Maximum speed | 275 km/h (171 mph) (Tōhoku Shinkansen, Jōetsu Shinkansen, Hokuriku Shinkansen, Hokkaido Shinkansen) 130 km/h (80 mph) (Yamagata Shinkansen, Akita Shinkansen) |
Traction motors | Mitsubishi Electric three-phase induction AC motor MT-205 |
Acceleration | 1.6 km/h/s |
Electric system(s) | 25 kV 50/60 Hz AC, 20 kV 50 Hz AC overhead catenary |
Current collector(s) | Pantograph |
Braking system(s) | Regenerative braking combined with electric command type air braking |
Track gauge | 1,435 mm (4 ft 8+1⁄2 in) |
Overview
editThe E926 series train is a non-revenue earning diagnostic train designed to replace the aging 925 series inspection train. The 925 series, based off the 200 series, had a lower top speed than newly-introduced trainsets at the time, such as the E3 series. Its loading gauge was also incompatible with the mini-shinkansen, which used narrower trains. At the time, the mini-shinkansen relied on KuMoYa 743 series inspection railcars. In response to these needs, the E926 series was introduced in 2001, with the 925 series withdrawn that same year.
The i in East i stands for intelligent, integrated, and inspection.[1] Since the routes and times of operation of the East i train are not publicly disclosed, it is considered lucky by railway enthusiasts when the viewer sees it.[2]
Formation
editThere are 7 East i series inspection train cars that were built. Cars 2 and 4 are equipped with a single arm pantograph. When the 6-car train is being maintained, a spare carriage is inserted into an E2 Series Shinkansen train.[3][4]
Car No. | 1 | 2 | 3 (13) | 4 | 5 | 6 |
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Uses | Communication, signal, and catenary testing car | Communication and power supply testing car | Track inspection car | Catenary inspection car | Power supply and signal detection car | Communication, signal, and catenary testing car |
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S51 (Car 1)
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S51 (Car 2)
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S51 (Car 3)
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S51 (Car 4)
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S51 (Car 5)
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S51 (Car 6)
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N21 (The spare carriage that is inserted into an E2 service when the 6-car set is being maintained) (Scrapped in 2015)[citation needed]
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(The E2 service with car N21 visible in the background)
References
edit- ^ Railway Pictorial (in Japanese). Electric Vehicle Research Group. January 2002. p. 96.
- ^ "「見ると幸せになる」列車 あなたは見たことある?" [Have you ever seen the train that brings you happiness when you see it?] (in Japanese). 12 May 2018. Archived from the original on 3 October 2018. Retrieved 18 October 2024.
- ^ "E2系N21編成+E926-13が検測" [E2 series N21 train + E926-13 inspection]. railf.jp (in Japanese). 3 August 2011. Retrieved 18 October 2024.
- ^ "E2系N21編成+E926-13が試運転" [E2 series N21 train + E926-13 test run]. railf.jp (in Japanese). 8 July 2011. Retrieved 18 October 2024.