|Class E954 "Fastech 360 S"
Class E955 "Fastech 360 Z"
The Fastech 360S train (stream-line end) at Omiya Station, May 2008
|In service||2005–2009 (fastech 360 S)
2006–2008 (fastech 360 Z)
|Manufacturer||Hitachi, Kawasaki Heavy Industries|
|Constructed||2005 (fastech 360 S)
2006 (fastech 360 Z)
|Scrapped||2008 (fastech 360 Z)
2009 (fastech 360 S)
|Number built||8 vehicles (Fastech 360 S)
6 vehicles (Fastech 360 Z)
|Number in service||None|
|Number preserved||1 vehicles (Fastech 360 S)
None (Fastech 360 Z)
|Number scrapped||7 vehicles (Fastech 360 S)
6 vehicles (Fastech 360 Z)
|Formation||8 cars (Fastech 360 S)
6 cars (Fastech 360 Z)
|Fleet numbers||S9 (Fastech 360 S)
S10 (Fastech 360 Z)
|Line(s) served||Tohoku Shinkansen, Joetsu Shinkansen, Nagano Shinkansen
Akita Shinkansen (Fastech 360 Z)
|Car body construction||Aluminium alloy|
|Maximum speed||360 km/h (220 mph) (nominal)
130 km/h (80 mph) (Akita Shinkansen)(Fastech 360 Z)
|Electric system(s)||25 kV AC, 50 Hz (Fastech 360 S)
25/20 kV AC, 50 Hz (Fastech 360 Z)
|Current collection method||Overhead catenary|
|Track gauge||1,435 mm (4 ft 8 1⁄2 in)|
Fastech 360 is the name given to a pair of former experimental high-speed trains developed by East Japan Railway Company (JR East) to test technology for the next-generation Shinkansen rolling stock. The name is a portmanteau of Fast, Technology, and 360 km/h (360 km/h/224 mph), the target operational speed for production trains based on the new technologies. Speeds of up to 405 km/h (251.7 mph) were targeted during performance testing. Results of testing using these trains was incorporated into the E5 series and E6 series trains, entering revenue service from 2011, eventually operating at 320 km/h (198.8 mph).
There were 2 trains:
- Class E954 Fastech 360S: 8-car set for use on Shinkansen tracks only
- Class E955 Fastech 360Z: 6-car set for use on both Shinkansen and Mini-shinkansen lines
Fastech 360 trains were equipped with emergency air braking plates like that of an aircraft, similar in appearance to the ears of a cat. This trait earned them a nickname of Nekomimi Shinkansen (猫耳新幹線), which literally means "cat-eared Shinkansen". This technology was not incorporated in the E5 series.
Class E954 Fastech 360S 
The train was withdrawn in September 2009 and scrapped.
- E954-1 (T1c)
- E954-2 (M1) (with pantograph)
- E954-3 (M2) (with toilet)
- E954-4 (M2)
- E954-5 (M1s)
- E954-6 (M2)
- E954-7 (M1) (with pantograph)
- E954-8 (T2c)
Class E955 Fastech 360Z 
This 6-car set (S10) was delivered on 6 April 2006. Cars 1 and 4 to 6 were built by Kawasaki Heavy Industries, and cars 2 and 3 were built by Hitachi Ltd. The train was withdrawn in December 2008 and scrapped.
- E955-1 (M2c)
- E955-2 (M1s)
- E955-3 (M1) (with pantograph and toilet)
- E955-4 (M1)
- E955-5 (M1) (with pantograph)
- E955-6 (M2c)
- "FASTECH 360 High-Speed Shinkansen Test Train to Debut". 9 March 2005. Retrieved 23 August 2009.
- JR電車編成表 2009夏 (JR EMU Formations - Summer 2009). Japan: JRR. June 2009. p. 13. ISBN 978-4-330-06909-8.
- プロトタイプの世界 - Prototype World. Japan: Kōtsū Shimbunsha. December 2005. OCLC 170056962.
- JR電車編成表 2010夏 (JR EMU Formations - Summer 2010). Japan: JRR. May 2010. p. 13. ISBN 978-4-330-14310-1.
- JR電車編成表 '07冬号 (JR EMU Formations - Winter 2007). Japan: JRR. December 2006. p. 12. ISBN 4-88283-046-9.
|Wikimedia Commons has media related to: Fastech 360|
- Press release from JR East (English)
- A bullet train... only with ears (BBC News)
- JR East press release: "新幹線高速試験電車 FASTECH 360 まもなくデビュー" (Japanese)
- 新幹線高速試験電車E955形式 （FASTECH360Z）の概要 (Japanese)
- Class E954 "Fastech 360 S" (Japan Railfan Magazine Online) (Japanese)
- Class E955 "Fastech 360 Z" (Japan Railfan Magazine Online) (Japanese)