Class 73
Former NMBS/SNCB Class 73 loco 7304 at Mariemburg CF3V, 24 September 2005.
Type and origin
Power typeDiesel
BuilderBN
Build date1965-1977 (three batches)
Total produced95
Specifications
Configuration:
  Whyte0-6-0
Gauge1,435 mm (4 ft 8+12 in) standard gauge
Driver dia.1,262 mm (49.69 in)
Length11.4 m (37 ft 5 in)
first batch 11.17 m (36 ft 8 in)
Adhesive weight9.33 t
(9.18 long tons; 10.28 short tons)
Loco weight56 t
(55.1 long tons; 61.7 short tons)
Fuel typediesel
Prime moverCockerill 6TH695SA or 6T240CO
TransmissionVoith hydraulic
Performance figures
Maximum speed30 or 60 km/h (19 or 37 mph)
Power output550 kW (740 hp)
Tractive effort211 kN (47,000 lbf)
Career
OperatorsSNCB/NMBS
Class73
Numbers7301-7395
Dispositionin service

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

The class formed the backbone of the NMBS/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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