NMBS/SNCB Class 73

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Class 73
Former NMBS/SNCB Class 73 loco 7304 at Mariemburg CF3V, 24 September 2005.
Type and origin Power type Diesel Builder BN Build date 1965-1977 (three batches) Total produced 95
Specifications Configuration: ​  • Whyte 0-6-0 Gauge 1,435 mm (4 ft 8+1⁄2 in) standard gauge Driver dia. 1,262 mm (49.69 in) Length 11.4 m (37 ft 5 in) first batch 11.17 m (36 ft 8 in) Adhesive weight 9.33 t (9.18 long tons; 10.28 short tons) Loco weight 56 t (55.1 long tons; 61.7 short tons) Fuel type diesel Prime mover Cockerill 6TH695SA or 6T240CO Transmission Voith hydraulic
Performance figures Maximum speed 30 or 60 km/h (19 or 37 mph) Power output 550 kW (740 hp) Tractive effort 211 kN (47,000 lbf)
Career Operators SNCB/NMBS Class 73 Numbers 7301-7395 Disposition in service

The Class 73 is a class of diesel locomotives operated by SNCB/NMBS in Belgium.

The class formed the backbone of the SNCB shunter fleet. Class 77s have replaced them but they are still to be found across Belgium. They were built in three batches: 7301-7335 during 1965–1967, 7336-7375 during 1973-1974 and finally 7373–7395 in 1976–1977.

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