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| Class E926 "East i" | |
|---|---|
 East i series inspection train | |
| Manufacturer | Tokyu Car Corporation |
| Constructed | 2001 |
| Entered service | 2001 |
| Scrapped | 2015 (E925) |
| 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 | 1,435mm |
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.