British Rail Class 33 – “Cromptons”
British Rail Class 33 diesel electirc Locomotives othewise known as Cromptons or BRCW Type 3′s were ordered in 1957 around the same time as the BRCW sisters Class 26 and 27 diesel locomotives and mainly ordered for the Southern region of the network. A total of 98 Class 33′s were built during 1960-1962 by the Birmingham Railway Carriage & Wagon Company and were known as Cromptons due to the Crompton Parkinson equipment installed in them.
| Britsh Rail Class 33 BRCW Type 3 |
|
|---|---|
| Power type | Diesel-electric |
| Builder | Birmingham Railway Carriage and Wagon Company |
| Serial number | DEL92–DEL189 (not in order) |
| Build date | 1960–1962 |
| Total produced | 98 |
| Configuration | Bo-Bo |
| UIC classification | Bo’Bo’ |
| Wheel diameter | 3 ft 7 in (1.092 m) |
| Minimum curve | 4 chains (80 m) |
| Wheelbase | 39 ft 0 in (11.89 m) |
| Length | 50 ft 9 in (15.47 m) |
| Width | D6500–D6585: 8 ft 10 in (2.69 m) D6586–D6597: 8 ft 1 1⁄2 in (2.5 m) |
| Height | 12 ft 8 in (3.86 m) |
| Locomotive weight | 73 long tons (74.2 t) to 77 long tons (78.2 t) |
| Fuel capacity | 800 imp gal (3,600 l; 960 US gal) |
| Prime mover | Sulzer 8LDA28 |
| Transmission | DC generator, DC traction motors |
| Multiple working | ★ Blue Star |
| Top speed | 85 mph (137 km/h) |
| Power output | Engine: 1,550 bhp (1,156 kW) At rail: 1,215 hp (906 kW) |
| Tractive effort | Maximum: 45,000 lbf (200 kN) Continuous: 26,000 lbf (116 kN) |
| Train heating | Electric Train Heat |
| Locomotive brakeforce |
35 LTf (349 kN) |
| Train brakes | Dual (Air & Vacuum) |
| Career | British Railways |
| Class | D15/1, D15/2; 15/6, 15/6A; Class 33 |
| Number | D6500–D6597; later 33001–33065, 33101–33119, 33201–33212 |
| Nicknames | Cromptons |
| Axle load class | Route availability 6 |
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