British Rail Class 58

Specifications
Specifications
Configuration:;
• UIC	Co′Co′
• Commonwealth	Co-Co
Gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Wheel diameter	1,120 mm (44.09 in)
Minimum curve	4 chains (264.00 ft; 80.47 m)
Wheelbase	bogie: 4.18 m (13 ft 9 in); bogie centres: 14.86 m (48 ft 9 in);
Length	19.13 m (62 ft 9 in)
Width	2.72 m (8 ft 11 in)
Height	3.91 m (12 ft 10 in)
Loco weight	130 tonnes (127.9 long tons; 143.3 short tons)
Fuel capacity	4,480 litres (990 imp gal; 1,180 US gal)
Prime mover	Ruston Paxman 12RK3ACT
RPM:
• Maximum RPM	1000 rpm
Alternator	Brush BA1101B
Traction motors	Brush TM73-62
Cylinder size	254 mm × 305 mm (10.0 in × 12.0 in),; bore × stroke;
MU working	◆ Red Diamond
Train brakes	Air
Safety systems	AWS, DSD

Type and origin
Type and origin
Power type	Diesel-electric
Builder	British Rail Engineering Limited, Doncaster Works
Build date	1983–1987
Total produced	50

British Rail Class 58
British Rail Class 58
	A class 58 at Saltley in April 1987
Power type
Type and origin
Power type	Diesel-electric
Builder	British Rail Engineering Limited, Doncaster Works
Build date	1983–1987
Total produced	50
Configuration:;
Specifications
Configuration:;
• UIC	Co′Co′
• Commonwealth	Co-Co
Gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Wheel diameter	1,120 mm (44.09 in)
Minimum curve	4 chains (264.00 ft; 80.47 m)
Wheelbase	bogie: 4.18 m (13 ft 9 in); bogie centres: 14.86 m (48 ft 9 in);
Length	19.13 m (62 ft 9 in)
Width	2.72 m (8 ft 11 in)
Height	3.91 m (12 ft 10 in)
Loco weight	130 tonnes (127.9 long tons; 143.3 short tons)
Fuel capacity	4,480 litres (990 imp gal; 1,180 US gal)
Prime mover	Ruston Paxman 12RK3ACT
RPM:
• Maximum RPM	1000 rpm
Alternator	Brush BA1101B
Traction motors	Brush TM73-62
Cylinder size	254 mm × 305 mm (10.0 in × 12.0 in),; bore × stroke;
MU working	◆ Red Diamond
Train brakes	Air
Safety systems	AWS, DSD
Maximum speed
Performance figures
Maximum speed	80 mph (130 km/h)
Power output	Engine: 3,300 hp (2,460 kW); At Rail: 2,387 hp (1,780 kW);
Tractive effort	Maximum: 60,000 lbf (267 kN)
Brakeforce	60 tonnes (59.1 long tons; 66.1 short tons)
Operators
Career
Operators	British Rail; EWS / DB Cargo UK;
Numbers	58 001-58 050
Nicknames	Bone
Axle load class	Route availability 7
Withdrawn	1999–2002
Disposition	5 currently preserved, 36 exported to France or Spain where 5 remain stored, remainder scrapped

The British Rail Class 58 is a class of Co-Co diesel locomotive designed for heavy freight. The narrow body with cabs at either end led to them being given the nickname "Bone" by rail enthusiasts.

Their design represented a major departure from British conventions of construction; amongst the innovations was the adoption of the American practice of modularisation. The first locomotive of the class was delivered to British Rail during early 1983 and entered service that same year. Despite expectations of a lengthy service life, during 2002, EWS decided to withdraw all examples of the type after only 19 years in service. Subsequently, 32 were hired abroad – four to the Netherlands, eight to Spain and twenty to France. A few examples have also been scrapped or have entered preservation.