CLASS 44 'Peak'

TOPS number range:

44001-44010

1957 BR number range:

D1-D10

Former class codes:

D23/1. later 23/1

Built by:

BR Derby

Introduced:

1959-60

Wheel arrangement:

1Co-Co1

Weight :

As built - 138 tonnes
Modified - 133 tonnes

Height:

12ft 10 1/8in

Width:

8ft 10 5/8in

Length:

67ft 11 in

Min curve negotiable:

As built - 5 chains
Modified - 3 chains

Maximum speed:

90mph

Wheelbase:

59ft 8in

Bogie wheelbase:

21ft 6in

Bogie pivot centres:

32ft 8in

Wheel diameter (driving):
Wheel diameter (pony):

3ft 9in
3ft

Brake type:

Vacuum

Sanding equipment:

Pneumatic

Heating type:

Steam - Stones OK 4625,
Later removed

Route availability:

7

Multiple coupling restriction:

Originally - Blue Star,
later removed

Brake force:

63 tonnes

Engine type:

Sulzer 12 LDA28A

Engine horsepower:

2,300hp

Power at rail:

1,800hp

Tractive effort:

70,0001b

Cylinder bore:

11.02in

Cylinder stroke:

14.17in

Main generator type:

Crompton CG462A1

Aux generator type:

Crompton CAG252A1

Number of traction motors:

6

Traction motor type:

Crompton C171 B1

Gear ratio:

62:17

Fuel tank capacity:

84Ogal

Cooling water capacity:

346gal

Lub oil capacity:

19Ogal

Boiler water capacity:

1,34Ogal, later removed

Boiler fuel capacity:

From main supply