British Rail Class 90

Specifications
Specifications
Configuration:;
• AAR	B-B
• UIC	Bo′Bo′
• Commonwealth	Bo-Bo
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Wheel diameter	3 ft 9+1⁄2 in (1.156 m)
Minimum curve	80 m (4 chains)
Wheelbase	43 ft 6 in (13.26 m)
• Bogie	10 ft 9 in (3.28 m)
Pivot centres	32 ft 9 in (9.98 m)
Length	61 ft 6 in (18.75 m)
Width	9 ft (2.7 m)
Height:;
• Pantograph	13 ft 0+1⁄4 in (3.969 m)
Loco weight	84.5 tonnes (83.2 long tons; 93.1 short tons)
Electric system/s	25 kV AC Catenary
Current pickup(s)	Brecknell Willis high speed pantograph
Traction motors	1,250 hp (930 kW); 4 × GEC 412 BZ; 4 × GEC G-412CY;
Gear ratio	32:73
MU working	TDM system
Train heating	Electric Train Heating index: 95
Loco brake	Air, Rheostatic
Train brakes	Air

Type and origin
Type and origin
Power type	Electric
Builder	British Rail Engineering Limited Crewe Works
Build date	1987–1990
Total produced	50

British Rail Class 90
British Rail Class 90
	Freightliner Class 90 at Edinburgh Waverley in 2016
Power type
Type and origin
Power type	Electric
Builder	British Rail Engineering Limited Crewe Works
Build date	1987–1990
Total produced	50
Configuration:;
Specifications
Configuration:;
• AAR	B-B
• UIC	Bo′Bo′
• Commonwealth	Bo-Bo
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Wheel diameter	3 ft 9+1⁄2 in (1.156 m)
Minimum curve	80 m (4 chains)
Wheelbase	43 ft 6 in (13.26 m)
• Bogie	10 ft 9 in (3.28 m)
Pivot centres	32 ft 9 in (9.98 m)
Length	61 ft 6 in (18.75 m)
Width	9 ft (2.7 m)
Height:;
• Pantograph	13 ft 0+1⁄4 in (3.969 m)
Loco weight	84.5 tonnes (83.2 long tons; 93.1 short tons)
Electric system/s	25 kV AC Catenary
Current pickup(s)	Brecknell Willis high speed pantograph
Traction motors	1,250 hp (930 kW); 4 × GEC 412 BZ; 4 × GEC G-412CY;
Gear ratio	32:73
MU working	TDM system
Train heating	Electric Train Heating index: 95
Loco brake	Air, Rheostatic
Train brakes	Air
Maximum speed
Performance figures
Maximum speed	110 mph (177 km/h)
Power output:;
• Continuous	5,000 hp (3,730 kW)
Tractive effort	58,000 lbf (258 kN)
Brakeforce	40 tons
Operators
Career
Operators	British Rail; DB Cargo UK; Freightliner;
Numbers	90001–90050
Nicknames	Skoda
Axle load class	Route availability 7
Withdrawn	2004–present
Disposition	25 in service, 25 stored

The British Rail Class 90 is a type of electric locomotive. They were built for mixed-traffic duties, operating from 25 kV AC overhead lines and producing 5,000 bhp (3,700 kW). They weigh 84.5 tonnes and can typically achieve a top speed of 110 mph (177 km/h).

The Class 90 is a modernised derivative of the preceding Class 87 locomotive, having been originally designated as the Class 87/2. During the 1980s, British Rail Engineering Limited (BREL) had submitted an offer to build 25 examples to replace various aging electric locomotives, including the Class 81, Class 82, Class 83, Class 84 and Class 85. It was selected over numerous rival proposals, including the InterCity 225 and the Class 89; the type was manufactured by BREL at Crewe Works between 1987 and 1990.

The Class 90 was introduced to service during the closing years of British Rail, being used for both passenger services and freight trains alike. Following the privatisation of British Rail, the type has served with various operators, including Greater Anglia, Virgin Trains and Great North Eastern Railway (GNER); it was, however, displaced largely from regular passenger services during the 2000s and 2010s. Currently, Class 90 locomotives are employed on heavy freight trains and occasional charter services.

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