British Rail Class 379

British Rail Class 379 Electrostar
Brand new Class 379 No. 379028 at Liverpool Street.
The interior of Standard Class aboard the Class 379.
In service	17 March 2011 - Current
Manufacturer	Bombardier Transportation
Family name	Electrostar
Constructed	2010 - 2011
Number built	30 trainsets
Formation	4 cars per trainset
Fleet numbers	379001 - 379030
Operator(s)	Greater Anglia
Line(s) served	West Anglia Main Line (Stansted Express)
Specifications
Maximum speed	100 mph (161 km/h)
Traction system	IGBT-VVVF (Bombardier MITRAC DR1000)
Electric system(s)	25 kV 50 Hz AC Overhead
Current collection method	Pantograph
Track gauge	1,435 mm (4 ft 8 1⁄2 in) standard gauge

The Class 379 Electrostar is a British electric multiple unit train type ordered in April 2009 for Stansted Express services operated by National Express East Anglia (NXEA) and later Greater Anglia.

The trains are also being used on services between London Liverpool Street, Bishops Stortford, Harlow Town, Stansted Airport, Cambridge, Ely and Kings Lynn. The fleet was ordered as part of the NXEA Service Improvement Plan designed to expand capacity on the heavily crowded lines into London Liverpool Street.

The trains are part of Bombardier Transportation's Electrostar family and are owned by Macquarie European Rail. They were built at Bombardier's Derby plant, where the first unit was unveiled on 13 October 2010.

A phased introduction into passenger service began in March 2011. They are maintained by Bombardier at Ilford. They work alongside the Class 317.

The Class 379 units feature 2+2 seating in standard class, and 2+1 seating in first class. Large luggage racks are provided should the train be on airport services.

Wi-Fi is supplied by Icomera of Sweden, not only for passenger internet use but also for linking the train's reservation, CCTV, passenger information and monitoring systems to the control room.

The trains have regenerative braking and use Bombardier's Orbita predictive fault monitoring system. Some features are taken from the upcoming Aventra. Interior lighting is supplied by Teknoware and includes state-of-the-art emergency lighting to fulfil GM/RT 2130 requirements. CCTV cameras on the roof monitor the pantograph arm.