loco-info.com - British Rail class 73

General
Built	1962	1965-1967	2013	2014
Manufacturer	English Electric		Brush Traction	Rail Vehicle Engineering Ltd.
Axle config	B-B
Gauge	4 ft 8 1/2 in (Standard gauge)

Dimensions and Weights
Length	53 ft 8 in
Service weight	170,900 lbs	172,025 lbs
Adhesive weight	170,900 lbs	172,025 lbs
Axle load	42,725 lbs	43,008 lbs

Boiler

Boiler

Variant	73/0	73/1	rebuilt 73/9 Cummins	rebuilt 73/9 MTU

Power Plant

Power Plant

Power
Power source	electric - DC + diesel-electric
Electric system	660-750 V
Continuous power	1,420 hp (1,059 kW)
Top speed	80 mph	90 mph
Starting effort	42,000 lbf	40,000 lbf
Engine	English Electric 4SRKT Mk II		Cummins QSK19	MTU 8V 40000 R43L
Engine type	4-cyl. diesel		2x 6-cyl. diese1	V8 diesel
Engine output	600 hp (447 kW)		1,500 hp (1,119 kW)	1,600 hp (1,193 kW)

Calculated Values
Factor of adhesion	1 : 4.07	1 : 4.30
Power-to-weight ratio	0.0083 hp/lb
Adhesive weight/Total	1 : 1.00

diesel locomotive

electric locomotive

third rail

dual power

passenger

last changed: 08 2023

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