British Rail Class 800

British Rail Class 800
British Rail Class 800
	A Great Western Railway Class 800 at Norton Fitzwarren
	The standard-class interior of a Great Western Railway Class 800 unit
In service	16 October 2017 – present
Manufacturer	Hitachi Rail
Built at	Kasado Works, Kudamatsu, Japan; Newton Aycliffe Manufacturing Facility, England;
Family name	A-train
Replaced	Class 180; InterCity 125; InterCity 225;
Constructed	2014–2018
Entered service	16 October 2017 (GWR); 14 May 2019 (LNER);
Number built	80; (36 × 800/0, 13 × 800/1, 10 × 800/2, 21 × 800/3)
Formation	5 cars per 800/0 and 800/2 unit:; DPTS-MS-MS-MC-DPTF; 9 cars per 800/1 and 800/3 unit:; DPTS-MS-MS-TS-MS-TS-MC-MF-DPTF;
Fleet numbers	800/0: 800001–800036; 800/1: 800101–800113; 800/2: 800201–800210; 800/3: 800301–800321;
Capacity	800/0: 326 seats; (36 first class, 290 standard); 800/1: 611 seats; (101 first class, 510 standard); 800/2: 302 seats; (48 first class, 254 standard); 800/3: 650 seats; (70 first class, 580 standard);
Owners	Agility Trains
Operators	Great Western Railway; London North Eastern Railway;
Depots	GWR:; North Pole; Stoke Gifford; Swansea Maliphant; LNER:; Bounds Green; Craigentinny; Doncaster Carr; Neville Hill;
Lines served	East Coast Main Line; Great Western Main Line;
Specifications
Car body construction	Aluminium
Train length	5-car units: 129.7 m (425 ft 6 in); 9-car units: 233.7 m (766 ft 9 in);
Car length	Driving vehicles:; 25.850 m (84 ft 9.7 in); Intermediate vehicles:; 26.000 m (85 ft 3.6 in);
Width	2.7 m (8 ft 10 in)
Doors	Single-leaf pocket sliding; (2 per side per car);
Maximum speed	125 mph (200 km/h)
Weight	5-car units: 243 tonnes (239 long tons; 268 short tons); 9-car units: 438 tonnes (431 long tons; 483 short tons);
Axle load	Motor cars: 15 tonnes (14.8 long tons; 16.5 short tons); Trailer cars: 13 tonnes (12.8 long tons; 14.3 short tons);
Traction system	Hitachi IGBT
Prime mover(s)	3 or 5 × MTU 12V 1600 R80L; (3 per 5-car unit, 5 per 9-car unit)
Engine type	V12 four-stroke turbo-diesel with SCR
Displacement	21 L (1,284 cu in) per engine
Power output	Per engine:; GWR: 700 kW (940 hp); LNER: 560 kW (750 hp);
Acceleration	0.7 m/s2 (1.6 mph/s)
Deceleration	Service:; 1.0 m/s2 (2.2 mph/s); Emergency:; 1.2 m/s2 (2.7 mph/s);
Electric system(s)	25 kV 50 Hz AC overhead
Current collector(s)	Pantograph
UIC classification	5-car units: 2′2′+Bo′Bo′+Bo′Bo′+Bo′Bo′+2′2′; 9-car units: 2′2′+Bo′Bo′+Bo′Bo′+2′2′+Bo′Bo′+2′2′+Bo′Bo′+Bo′Bo′+2′2′;
Braking system(s)	Electro-pneumatic (disc) and regenerative
Safety system(s)	AWS; BR ATP (GWR units only); ETCS; TPWS;
Coupling system	Dellner 10
Multiple working	Within subclass
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge

The British Rail Class 800, branded as the Intercity Express Train (IET) by Great Western Railway (GWR) and Azuma by London North Eastern Railway (LNER) is a type of bi-mode multiple unit train built by Hitachi Rail for GWR and LNER. The type uses electric motors powered from overhead electric wires for traction, but also has diesel generators to enable trains to operate on unelectrified track. It is a part of the Hitachi AT300 product family.

The Class 800 was developed and produced, alongside an electric-only Class 801 variant, as part of the Intercity Express Programme (IEP) to procure replacements for the InterCity 125 and InterCity 225 fleets of high speed trains. The trains were manufactured by Hitachi between 2014 and 2018, being assembled at Hitachi's Newton Aycliffe Manufacturing Facility using bodyshells shipped from the company's Kasado Works in Japan. Similar bi-mode units have also been produced by Hitachi as Classes 802, 805, and 810.

The Class 800 trains came into service on the Great Western Main Line on 16 October 2017, while the first examples on the East Coast Main Line were put into service on 15 May 2019. Early operations have been troubled by fatigue cracking and corrosion on the aluminium vehicle body shells, particularly on the yaw dampers.

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