British Rail Class 110
| British Rail Class 110 (BRCW Calder Valley) |
|
|---|---|
 |
|
| In service | 1961 – 1988 |
| Manufacturer | BRCW |
| Constructed | 1961–1962 |
| Refurbishment | 1979-80 |
| Scrapped | 1988 |
| Number built | 30 sets |
| Number preserved | One 3-car set, One 2-car set |
| Formation | Three-car sets: DMBC-TSL-DMCL (TSL removed from many sets in 1982) |
| Capacity | DMBC: 12 first, 33 second TSL: 72 second DMCL: 12 first 54 second |
| Operator(s) | British Rail |
| Specifications | |
| Car length | 57 ft 6 in (17.53 m) |
| Width | 9 ft 3 in (2.82 m) |
| Height | 12 ft 9 in (3.89 m) |
| Maximum speed | 70 mph (113 km/h) |
| Weight | DMBC: 32 long tons 0 cwt (71,700 lb or 32.5 t) TSL: 24 long tons 0 cwt (53,800 lb or 24.4 t) DMCL: 31 long tons 10 cwt (70,600 lb or 32 t) |
| Prime mover(s) | Two Rolls-Royce C6NFLH engines per power car |
| Power output | 720 hp (537 kW) per set 180 bhp (130 kW) per engine |
| Transmission | 4-speed epicyclic gearbox |
| UIC classification | (1A)′(A1)′+2′2′+(1A)′(A1)′ |
| Braking system(s) | Vacuum |
| Safety system(s) | AWS |
| Coupling system | Screw-link |
| Multiple working | ■ Blue Square |
| Track gauge | 4 ft 8 1⁄2 in (1,435 mm) |
The Class 110 diesel multiple units were built by the Birmingham Railway Carriage and Wagon Company in conjunction with the Drewry Car Co. to operate services on the former Lancashire and Yorkshire main line. They saw service uniquely is this region, which earned them the name of the 'Calder Valley' sets. They were an updated version of the Class 104, with a revised cab design and raised bodyside window frames.
The arduous Calder Valley route meant they needed more power than most sets, so they were fitted with 180 hp (130 kW) Rolls-Royce C6NFLH engines, and when delivered they had the highest hp/ton of any of the DMUs, including the lightweights. With a set weighing 87½ tons (tare), this gave a power-to-weight ratio of 8.3 hp / ton, which was appreciably higher than any other all-diesel sets in use at the time using normally aspirated engines. Performance tests included a standing start against a ruling gradient of 1 in 261 and a set in tare condition achieved a speed of 30 mph (48 km/h) in 45 seconds, 50 mph (80 km/h) in 2 minutes 4 seconds, and 70 mph (110 km/h) in 4 minutes 6 seconds. From a standing start on a 1 in 45 gradient a speed of 25 mph (40 km/h) in third gear was reached in 42 seconds. Each set had 24 first class and 159 second class seats.
The first twenty sets, for the NER, were ordered in March 1959 and were allocated to Bradford Hammerton Street depot. The second batch were allocated to the LMR in January 1961, based at Newton Heath in Manchester. Deliveries of the two batches was concurrent, starting in 1961, and these were the penultimate class of first generation sets to be built.
All sets were concentrated at Hammerton Street by 1976.
...
Wikipedia