WIN350

500-900 series "WIN350"
End car 500-906 preserved at Hakata Shinkansen Depot, October 2011
In service	1992–1995
Manufacturer	Hitachi, Kawasaki Heavy Industries
Constructed	1992
Scrapped	1996
Number built	6 vehicles
Number in service	None
Number preserved	2 vehicles
Number scrapped	4 vehicles
Formation	6 cars
Fleet numbers	W0
Operator(s)	JR West
Depot(s)	Hakata
Line(s) served	Sanyo Shinkansen
Specifications
Car body construction	Aluminium alloy
Car length	26,550 mm (87 ft 1 in) (end cars), 25,000 mm (82 ft 0 in) (intermediate cars)
Width	3,380 mm (11 ft 1 in)
Maximum speed	350 km/h (215 mph) (nominal)
Traction system	300 kW (400 hp) 3-phase motors
Electric system(s)	25 kV AC, 60 Hz
Current collection method	Overhead catenary
Safety system(s)	ATC
Track gauge	1,435 mm (4 ft 8 1⁄2 in)

"WIN350" was the name given to the 500-900 series (500系900番代) 6-car experimental high-speed Shinkansen train developed in 1992 by the West Japan Railway Company (JR West) in Japan to test technology to be incorporated in next-generation shinkansen trains expected to operate at speeds of 350 km/h (217 mph) from 1994. Initially given the designation "500X", the name "WIN350" stood for "West Japan's Innovation for operation at 350 km/h".

Cars 500-901 to 500-903 were built by Kawasaki Heavy Industries in Hyogo Prefecture. Cars 500-904 to 500-906 were built by Hitachi in Yamaguchi Prefecture.

The front-end designs of the two driving vehicles (500-901 and 500-906) were slightly different, with 500-906 featuring a "cockpit" style arrangement. The external livery was purple and light grey, with darker purple lining.

All axles were motored, using 300 kW three-phase motors, and cars were equipped with tilting and active suspension.

Internally, only car 4 was fitted with passenger seats, with 10 rows of 3+2 standard-class seating and 5 rows of 2+2 Green class (first class) seating.

The 6-car set, designated "W0", was formed as follows.

Initially, cars 1, 2, and 5 were fitted with pantographs.

The WIN350 train was delivered to Hakata Shinkansen Depot in April 1992.

On 6 August 1992, the train recorded a Japanese national speed record of 345.8 km/h on the Sanyo Shinkansen. Two days later, on 8 August 1992, the train recorded a Japanese national speed record of 350.4 km/h on the Sanyo Shinkansen between Ogōri (now Shin-Yamaguchi) and Shin-Shimonoseki.

The WIN350 trainset was withdrawn on 31 May 1996, and a special farewell ceremony was held at Hakata Shinkansen Depot.

End car 500-901 is preserved outdoors at the RTRI large-scale wind tunnel test facility in Maibara, Shiga. Initially expected to be moved to the Modern Transportation Museum in Osaka, car 500-906 is preserved at Hakata Shinkansen Depot.