British Rail Class 01
British Rail's Class 01 diesel locomotives were a short wheelbase 0-4-0 diesel-mechanical design intended for use in areas with tight curves and limited clearance.
| British Rail Class 01 | |
| Power type | Diesel-mechanical |
|---|---|
| Builder | Andrew Barclay Sons & Co. |
| Serial number | 395–398, 424 |
| Build date | 1956 (4), 1958 (1) |
| Total production | 5 |
| Configuration | 0-4-0 |
| UIC classification | B |
| Gauge | Lua error in package.lua at line 80: module 'Module:Track gauge/data' not found. |
| Wheel diameter | 3 ft 2 in (0.965 m) |
| Minimum curve | 1.06 chains (21 m) |
| Wheelbase | 6 ft 0 in (1.83 m) |
| Length | 23 ft 8 in (7.21 m) |
| Width | 8 ft 5+1⁄2 in (2.578 m) |
| Height | 11 ft 10+1⁄2 in (3.620 m) |
| Locomotive weight | 25 long tons (25 t) |
| Fuel capacity | 325 imp gal (1,480 L; 390 US gal) |
| Prime mover | Gardner 6L3 |
| Engine RPM range | 1,200 (max) |
| Engine type | Four-stroke diesel |
| Transmission | Mechanical: Wilson SE4, 4-speed epicyclic gear box, Vulcan-Sinclair type 23 rigid hydraulic coupling, to a Wiseman 15LGB reverse and final drive unit. |
| Top speed | 14.5 mph (23.3 km/h) |
| Power output | Engine: 153 hp (114 kW) At rail: 102 hp (76 kW) |
| Tractive effort | 12,750 lbf (56.7 kN) (max) |
| Locomotive brakes | Straight Air |
| Locomotive brakeforce | 15 long tons-force (150 kN) |
| Train brakes | 11503–11506: none 18: Vaucuum |
| Career | British Railways |
| Number | 11503–11506, 81 (departmental); later D2953–D2956; later 01001–01002 |
| Axle load class | RA 1 |
| Retired | 1966–1981 |
