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Shinkansen

E3 · Akita · Yamagata

E3 · Akita · Yamagata
Look closer

What should I look for around the cab?

運転台(うんてんだい)

Compact silver cab; original Komachi colour scheme.

Compare · E6 · Akita

JR東日本 · 車両紹介

Compact silver cab; original Komachi colour scheme.

Technical profile

E3 · six-car Akita configuration in the 2013 comparison

The six-car configuration describes the Akita design. Seven-car Yamagata sets and later conversions require separate specifications. The two supply voltages allow the train to cross between Shinkansen and converted conventional routes.

Formation · cars / M / T6 · 4M2T
Train length128 m
Body width2,945 mm
Output per motor300 kW · continuous
Electrical supplyAC 25 / 20 kV · 50 Hz
Train protectionDS-ATC · ATS-P

M = powered car; T = unpowered car. Figures describe one set.

Evidence · 2026-11-07
  1. JR-East Shinkansen · JR East · Yagishita · 2013 · Slide “Features of rolling stock”, comparison table

Inside the engineering

E3 pantograph development and Yamagata ride-control context

PantographPS206 · low-noise single-arm design
Manufacturer milestone1997: first application of Toyo’s low-noise Shinkansen single-arm design
Active lateral suspensionEnd cars in the E3 configuration compared by JR East 2

Where active control was concentrated

JR East identifies the leading and trailing cars as particularly exposed to lateral sway. Its E8 comparison describes active control at the E3 ends, then an expansion to every E8 car. This is a scoped Yamagata comparison, not every historical E3 variant.

A smaller noise source above the roof

Toyo’s history identifies the E3 PS206 as the first application of its low-noise Shinkansen single-arm design. It marks an engineering change in current collection, not just a different outline.

Technical sources and page references
  1. 百年を駆け抜けた技術と挑戦 · パンタグラフ開発の歴史
    東洋電機製造 · 2018 · p.18 パンタグラフ開発の歴史; indexed original passage (full PDF exceeds retrieval limit)
  2. SERIES E8 2024.3.16 DEBUT
    JR東日本 · 2025-03 · 特徴 / 乗り心地の向上 / サービス品質の向上; page states March 2025 information

Details from the literature

Seating

These rows describe the seven-car Yamagata Tsubasa formation. An older photograph marked Komachi may show a different formation.

Example rows · the gap marks the aisle
Green CarCar 11
2 + 2
OrdinaryCar 12
2 + 2

Seat plans and sources · のぞみ新幹線ナビNEWS · E3系つばさ

Shinkansen profile studio

Sources and updates

Checked 2026-11-07

www.railway-museum.jp