British Rail Class 41 (HST)

The British Rail Class 41 was the original classification for the power cars of the prototype High Speed Train. However, the train was later re-classified as a diesel-electric multiple unit, and the whole set became Class 252. They were of Bo-Bo wheel arrangement.

British Rail Class 41 (HST)
Type and origin
Power typeDiesel-elctric
BuilderBREL Crewe Works
Build date1972
Total produced2
Specifications
Configuration:
​
 • WhyteBo-Bo
 • UICB'B'
Gauge4 ft 8 1⁄2 in (1,435 mm) standard gauge
Wheel diameter3 ft 4 in (1.016 m)
Wheelbase42 ft 4 in (12.90 m)
Length56 ft 4 in (17.17 m)
Width8 ft 11 in (2.72 m)
Height18 ft 11 in (5.77 m)
Loco weight68.5 tonnes (67.4 long tons; 75.5 short tons)
Prime moverPaxman Valenta 12RP200L
Traction motorsBrush TMH68-46, frame mounted
MU workingWithin class only
Train heatingElectric Train Heat
Train brakesAir
Performance figures
Top speed125 mph (201 km/h)
Power outputEngine: 2,500 bhp (1,864 kW)
Tractive effort17,980 lbf (80.0 kN)
Career
Railroad(s)British Rail
Number41001–41002; later ADB975812–813
Axle load classRoute availability 6
Dispositionpreserved
41001 front view
41001 rear/side view


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