British Rail Class 387

The British Rail Class 387 is a type of electric multiple unit passenger train. It was made for Great Western Railway. The train was built by Bombardier Transportation. A total of 107 units were made. The first train began being used in December 2014. The trains are currently used by Great Western Railway, Govia Thameslink Railway, and Heathrow Express. The Class 387 is a version of the Class 379 Bombardier Electrostar.The Class 387 has dual-voltage capability. This lets the trains run on 750 V DC third rail as well as use 25 kV AC OLE. The class was the last rolling stock ordered by the Bombardier Electrostar family. ^[1] As of 2023, 107 units were built.

British Rail Class 387 Electrostar
Great Western Railway Class 387 units at Reading
The interior of a GWR Class 387 unit
In service	8 December 2014 – present
Manufacturer	Bombardier Transportation
Built at	Derby Litchurch Lane Works
Family name	Electrostar
Replaced	Class 165 (GWR) Class 166 (GWR) Class 317 (Great Northern) Class 321 (Great Northern) Class 332 (Heathrow Express) Class 365 (Great Northern) Class 442 (Gatwick Express)
Number built	107
Successor	Class 700 (Thameslink) Class 720 (c2c)
Formation	4 cars per unit: DMSO-MSO-PTSO-DMSO
Operators	Current: Gatwick Express Great Western Railway Great Northern Heathrow Express Former: Thameslink c2c
Specifications
Car length	20.39 metres (66 ft 11 in)
Width	2.80 metres (9 ft 2 in)
Height	3.77 metres (12 ft 4 in)
Maximum speed	110 mph (177 km/h)
Traction system	IGBT-VVVF (Bombardier MITRAC DR1000)
Power output	1.68 MW (2,250 hp)
Electric system(s)	25 kV 50 Hz ACoverhead 750 V DC third rail
Current collector(s)	Pantograph (AC) Contact shoe (DC)
UIC classification	2′Bo′+2′Bo′+2′2′+Bo′2′
Safety system(s)	AWS TPWS ETCS (HX units only)
Track gauge	1,435 mm (4 ft 8 1⁄2 in) standard gauge