CLASS 52 'Western'

1957 BR number range:

D1000-D1073

Former class codes:

D27/1, later 27/1

Built by:

BR Swindon & Crewe

Introduced:

1961-1964

Wheel arrangement:

C-C

Weight (operational):

108 tonnes

Height:

12ft 11 7/8in

Width:

9ft

Length:

68ft

Min curve negotiable:

4 1/2 chains

Maximum speed:

90mph

Wheelbase:

54ft 8in

Bogie Wheelbase:

12ft 2in

Bogie pivot centres:

42ft 6in

Wheel diameter:

3ft 7in

Brake type:

Originally - Vacuum, most later fitted with Dual

Sanding equipment:

Pneumatic

Route availability:

6

Heating type:

Steam - Spanner Mk 111

Multiple coupling restriction:

Not Multiple Fitted

Brake force:

82 tonnes

Engine type:

2 x Maybach M D655

Engine horsepower:

Total - 2,700hp

Power at rail:

2,350hp

Tractive effort:

72,6001b, later reduced to 70,000lb

Cylinder bore:

7 1/4in

Cylinder stroke:

8 1/4in

Transmission type:

Voith L630rU

Fuel tank capacity:

850gal

Lub oil capacity:

100 gal

Boiler water capacity:

800gal

Boiler fuel supply:

From main supply