High-speed train Japan Shinkansen N700S Series Bullet Train

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The N700S series (N700S系, Enu nanahyakuesu-kei) is a Japanese Shinkansen high-speed train with tilting capability operated by JR Central and JR West on the Tokaido and San'yō Shinkansen lines since 2020, and JR Kyushu on the Nishi Kyushu Shinkansen line since 2022.

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In June 2016, JR Central announced plans to build a new prototype "N700S" 16-car trainset (with "S" standing for "Supreme") for evaluating new technology and features on the Tokaido and Sanyo Shinkansen lines from March 2018.
Developed from the earlier N700 series design, the new train will incorporate a number of new features. Refinements to the ATC and braking systems will enable shorter braking distances in emergencies such as earthquakes. The traction system uses silicon carbide components, and uses 7% less power than the N700A series. Toshiba SCiB LTO batteries are installed so that the train can operate at low speed in the event of a disruption to overhead power, as well as keep toilets in operation.
Optimized underfloor equipment layout will allow the same standard design to be used to easily produce 12, 8 and 6-car trainsets in addition to the Tokaido Shinkansen 16-car trainsets. This optimization is intended to make the train more flexible for possible export.
Green cars will use active suspension to further improve ride quality, and ordinary-class cars will have AC power outlets for each seat. Other features include larger luggage storage, closed-circuit television and "softer, more relaxing" interior lighting. In 2021, the train was awarded the Laurel Prize by the Japan Railfan Club.

JR Central
A 16-car prototype set (J0), assembled at the Nippon Sharyo Toyokawa plant, was unveiled at JR Central's Hamamatsu depot on 10 March 2018. From 20 March, this set was used for testing and evaluation. High-speed trials at the design speed of 360 km/h were conducted during 2019 on the Tokaido Shinkansen, reaching 363 km/h. This is 28 km/h faster than the fastest speed ever achieved by the N700A, and may indicate plans to raise the maximum operating speed on the line.
The first full-production J set (J1) was delivered to JR Central in April 2020, with trains entering revenue service on 1 July 2020.
JR Central announced in May 2022 that it would add 19 trainsets (304 vehicles) to their current N700S fleet at a cost of 114 billion yen ($897m). The first two of these trainsets are scheduled to enter service in 2023, with seven trainsets delivered in 2024 and 2025, and three more delivered in 2026.

JR Kyushu
For the Nishi Kyushu Shinkansen, four 6-car N700S series trainsets were ordered by JR Kyushu. Nicknamed "Kamome", these entered service in September 2022.

Taiwan High Speed Rail
On March 15, 2023, Taiwan High Speed Rail announced it will purchase 12 new trains consisting of 12 cars each to replace some of its older THSR 700T sets. These will be manufactured by an alliance of Hitachi and Toshiba.

Operations
The first N700S sets replaced 700 series trains, and added more rolling stock needed to realize the increased amount of services on the Tokaido Shinkansen planned from 2020. The N700S series is expected to gradually replace N700 series sets on the Sanyo, Tokaido, and Kyushu Shinkansen lines. A 6-car variant started operations on the Nishi Kyushu Shinkansen on 23 September 2022.
The train is also planned to run on the proposed Texas Central Railway high-speed line connecting Dallas and Houston.

Variants
N700S series: 12 x 16-car "J" sets owned by JR Central, introduced from 1 July 2020
N700S-3000 series: 2 x 16-car "H" sets owned by JR West, introduced from 13 March 2021
N700S-8000 series "Kamome": 4 x 6-car "Y" sets owned by JR Kyushu on the Nishi Kyushu Shinkansen, introduced from 23 September 2022
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