What is British Rail Class 90?
{{Infobox Locomotive |name = British Rail Class 90 |powertype = Electric |image = 90017 at Norwich.JPG |caption = British Rail Class 90/0, no. 90017 at Norwich |roadnumber = 90001–90050 |builder = [[BREL]] [[Crewe Works]] |builddate = 1987–1990 |totalproduction = 50 |gauge = {{RailGauge|sg|lk=on|al=on}} |tractionmotors = |electricsystem = [[25 kV AC]] |collectionmethod = |whytetype = Bo-Bo |uicclass = Bo'Bo' |wheeldiameter = |minimumcurve = |trainbrakes = Air |locobrakes = Air, Rheostatic |locobrakeforce = |wheelbase = |length = |width = |height = |locoweight = {{convert|84.5|t|lk=on}} |topspeed ={{convert|75|-|110|mph|km/h|abbr=on|lk=on}} |poweroutput = |tractiveeffort = |trainheating = [[Electric Train Heating]] |multipleworking = [[Time-division multiplexing|TDM]] system |axleloadclass = [[Route availability]] |railroad = [[British Rail]] }} The [[British Rail]] '''Class 90''' [[electric locomotive]]s are electric locomotives that were built by [[BREL]] at [[Crewe]] from 1987-1990. Each locomotive weighs 84.5 [[tonnes]] and has a top speed of {{convert|110|mph|km/h|abbr=on|lk=on}}. They operate from [[List of current systems for electric rail traction|25 kV]] [[alternating current|AC]] overhead wires and produce {{convert|5000|bhp|abbr=on|lk=on}}. The class is employed on both express passenger services and heavy [[cargo|freight]] trains. {{British Rail Locomotives}} {{Transport-stub}} [[Category:British Rail electric locomotives|81]] [[Category:BREL locomotives]]