SNCB Class 51

Class 51
Farewell trip of Class 51, 2003,09-13
Power type Diesel
Builder Cockerill
Build date 1961-1963
Total produced 93
AAR wheel arr. Co-Co
Gauge 1,435 mm (4 ft 8 12 in)
Driver diameter 1,010 mm (40 in)
Length 20.16 m (66 ft 2 in)
Weight on drivers 9.75 t
Locomotive weight 117 t
Fuel type Diesel
Transmission Electric (ACEC)
Top speed 120 km/h (75 mph)
Power output 1450 kW
Tractive effort 272 kN
Career SNCB/NMBS
Class 51
Number in class 0 All withdrawn

The SNCB Class 51 is a class of diesel locomotive used in Belgium.

No class 51s remain in service with NMBS/SNCB although a number have been preserved.

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