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Record: 71951 (21/04/2026)
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25 Bo-Bo


Class Types
1955 Class D12/1
Pre-Tops Class 12/1
TOPS Class 25

General
Year Introduced 1961
Wheel Arrangement Bo-Bo
Manufacturers
ManufacturerTotal
Beyer Peacock Ltd. 36
Darlington Works 65
Derby Works 226
Number Range (as built) D5151-D5299, D7500-D7677
Number Built 327

Illustration
Copyright: Curly42 ()
Miscellaneous
25/0 25/1 25/2 25/3 Ethel 25/9
Year Introduced           1985

Dimensions
25/0 25/1 25/2 25/3 Ethel 25/9
Weight   75t 0cwt        
Length 50' 6"
As 25/0
As 25/0
As 25/0
As 25/0
As 25/0

Power
25/0 25/1 25/2 25/3 Ethel 25/9
Power Unit Sulzer 6LDA28B
As 25/0
As 25/0
As 25/0
As 25/0
As 25/0
Horse Power 1250hp
As 25/0
As 25/0
As 25/0
As 25/0
As 25/0

Transmission
25/0 25/1 25/2 25/3 Ethel 25/9
Transmission Type Electric Electric Electric Electric Electric Electric

Heating
25/0 25/1 25/2 25/3 Ethel 25/9

Fuel, Lubricants, Water
25/0 25/1 25/2 25/3