British Rail Class 52

Specifications
Specifications
Configuration:;
• UIC	C′C′
• Commonwealth	C-C
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Wheel diameter	3 ft 7 in (1.092 m)
Minimum curve	4.5 chains (300 ft; 91 m)
Wheelbase	54 ft 8 in (16.66 m)
Length	68 ft 0 in (20.73 m)
Width	8 ft 8 in (2.64 m)
Height	12 ft 11+3⁄4 in (3.96 m)
Loco weight	108 long tons (110 t; 121 short tons)
Fuel capacity	850 imp gal (3,900 L; 1,020 US gal)
Prime mover	2 × Maybach MD655 (64.5 L or 3,940 cu in)
Transmission	Hydraulic
MU working	Not fitted
Train heating	Steam
Train brakes	Vacuum; later Dual (Air and Vacuum)

Type and origin
Type and origin
Power type	Diesel-hydraulic
Builder	Swindon Works (30); Crewe Works (44);
Build date	1961–1964
Total produced	74

British Rail Class 52
British Rail Class 52
	A Class 52 at Old Oak Common TMD in 1976.
Power type
Type and origin
Power type	Diesel-hydraulic
Builder	Swindon Works (30); Crewe Works (44);
Build date	1961–1964
Total produced	74
Configuration:;
Specifications
Configuration:;
• UIC	C′C′
• Commonwealth	C-C
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Wheel diameter	3 ft 7 in (1.092 m)
Minimum curve	4.5 chains (300 ft; 91 m)
Wheelbase	54 ft 8 in (16.66 m)
Length	68 ft 0 in (20.73 m)
Width	8 ft 8 in (2.64 m)
Height	12 ft 11+3⁄4 in (3.96 m)
Loco weight	108 long tons (110 t; 121 short tons)
Fuel capacity	850 imp gal (3,900 L; 1,020 US gal)
Prime mover	2 × Maybach MD655 (64.5 L or 3,940 cu in)
Transmission	Hydraulic
MU working	Not fitted
Train heating	Steam
Train brakes	Vacuum; later Dual (Air and Vacuum)
Maximum speed
Performance figures
Maximum speed	90 mph (140 km/h)
Power output	Engines: 1,350 bhp (1,007 kW) at 1,500 rpm × 2; At rail: 2,000 hp (1,491 kW)
Tractive effort	Maximum: 66,700 lbf (297 kN); Continuous: 45,200 lbf (201 kN)@ 14.5 mph (23.3 km/h)
Brakeforce	50 long tons-force (498 kN)
Operators
Career
Operators	Western Region of British Railways
Numbers	D1000–D1073
Nicknames	Westerns, Wizzos, Thousands.
Axle load class	Route availability 7
Withdrawn	1973–1977
Disposition	7 preserved, remainder scrapped

The British Rail Class 52 is a class of 74 Type 4 diesel-hydraulic locomotives built for the Western Region of British Railways between 1961 and 1964. All were given two-word names, the first word being "Western" and thus the type became known as Westerns. They were also known as Wizzos and Thousands. The final Class 52 locomotives were withdrawn from service in 1977.

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