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Record: 71951 (21/04/2026)
(Free MySQL Counter)
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BR Derby 44 1Co-Co1
Class Types
| 1955 Class |
D23/1 |
| Pre-Tops Class |
23/1 |
| TOPS Class |
44 |
General
| Alias |
Peak |
| Year Introduced |
1958 |
| Wheel Arrangement |
1Co-Co1 |
| Manufacturers |
|
| Number Range (as built) |
D1-D10 |
| Number Built |
10 |
|
|
|
Miscellaneous
| Year Introduced |
1959 |
| Maximum Speed |
90mph |
| Sanding Equipment |
Pneumatic |
| Route Availability |
7 |
| Brake Type (loco - as built) |
Vacuum |
| Notes |
Locomotives had their steam boilers removed from the early 1960's. In the early seventies, modifications were made to the bogies to reduce the minimum curve to just 3.5 chains |
Dimensions
| Weight |
138t 0cwt |
| Wheel Diameter |
3' 9" |
| Pony Wheel Diameter |
3' |
| Length |
67' 11" |
| Height |
12' 101⁄8" |
| Width |
8' 105⁄8" |
| Wheelbase |
59' 8" |
| Bogie Wheelbase |
21' 6" |
| Bogie Pivot Centres |
32' 8" |
| Minimum Curve |
5 |
Power
| Power Unit |
Sulzer 12LDA28A |
| Tractive Effort |
70,000lbs |
| Horse Power |
2300hp |
| Power at Rail |
1,800hp |
Transmission
| Transmission Type |
Electric |
| Traction Motor Number |
6 |
| Gear Ratio |
62:17 |
Heating
| Heating Type |
Steam |
| Boiler Water Capacity |
1,340gal |
Fuel, Lubricants, Water
| Fuel Capacity |
840gal |
| Coolant Capacity |
346gal |
| Lubrication Oil Capacity |
190gal |
|
