ALFA-X

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Class E956 "ALFA-X"
ALFA-X train at Sendai station
In service	2019-present
Manufacturer	Hitachi, Kawasaki Heavy Industries
Entered service	9 May 2019
Number built	10 cars
Number in service	10 cars (1 set)
Formation	10 cars
Fleet numbers	S13
Operators	JR East
Lines served	Tohoku Shinkansen
Specifications
Car length	24.5 m (80 ft 5 in)(intermediate cars) 26.25 m (86 ft 1 in) (end cars)
Width	3.35 m (11 ft 0 in)
Height	3.7 m (12 ft 2 in)
Maximum speed	400 km/h (250 mph)
Traction system	500 kW (671 hp) motors (4 per car)
Power output	12 MW (16,092 hp)
Electric system(s)	25 kV AC 50 Hz Overhead catenary
Current collector(s)	Pantograph
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge

The Class E956 (E956形), branded "ALFA-X", is a ten-car experimental Shinkansen train operated by East Japan Railway Company (JR East) in Japan to test technology to be incorporated into future trains operating at speeds of up to 360 km/h (225 mph). The name is an acronym for "Advanced Labs for Frontline Activity in rail eXperimentation".^[1] The first train was unveiled on 9 May 2019.^[2] Its test run is mainly performed in sections between Sendai and Shin-Aomori of the Tohoku Shinkansen line, and, in some cases, on the Hokkaido Shinkansen line.