Specifications

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Technical Data

 
TOPS Number:
25313
Former Number:
D7663
Builder:
British Rail, Derby
Wheel Arrangement:
Bo-Bo
Weight:
73 ton 15cwt in running order
Tractive Effort:
39,000 to 45,000lb
Wheelbase:
36ft 6in
Bogie Wheelbase:
8ft 6in
Bogie Pivot Centres:
28ft 0in
Wheel Diameter:
3ft 9in
Height (max):
12ft 8in
Width:
9ft 1 in
Length:
50ft 6in
Min Negotiable Curve:
4.5 chains
Max Speed:
90mph
Fuel Tank Capacity: 
500 gal
Cooling Water Capacity:
187 gal
Lub. Oil Capacity:
100 gal
Brakes:
Air/Vacuum
Sanding Eqpt:
Pneumatic
Engine:
Sulzer 6LDA28B
Horsepower:
1250
Cylinders:
11.02in bore x 14.17in stroke
Main Generator:
AEI RTB15656
Auxiliary Generator:
AEI RTB7440
Traction Motors:
AEI 253AY/137BX
Gear Ratio:
67:18
Route Availability:
5
Coupling Restriction:
Blue Star
Brake Force:
38 ton