British Rail Class 41 (HST)

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British Rail Class 41 (HST)
Power type Diesel-elctric
Builder BREL Crewe Works
Build date 1972
Total production 2
Configuration Bo-Bo
UIC classification B'B'
Gauge ft 8+12 in (1,435 mmstandard gauge
Wheel diameter 3 ft 4 in (1.016 m)
Wheelbase 42 ft 4 in (12.90 m)
Length 56 ft 4 in (17.17 m)
Width 8 ft 11 in (2.72 m)
Height 18 ft 11 in (5.77 m)
Locomotive weight 68.5 tonnes (67.4 long tons; 75.5 short tons)
Prime mover Paxman Valenta 12RP200L
Traction motors Brush TMH68-46, frame mounted
Multiple working Within class only
Top speed 125 mph (201 km/h)
Power output Engine: 2,500 bhp (1,864 kW)
Tractive effort 17,980 lbf (80.0 kN)
Train heating Electric Train Heat
Train brakes Air
Career British Rail
Number 41001–41002; later ADB975812–813
Axle load class Route availability 6
Disposition to Research Centre Derby, November 1976, withdrawn January 1982
41001 front view
41001 rear/side view

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.