CIE 201 Class
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| Type and origin | |
|---|---|
| Power type | Diesel-electric |
| Builder | Metropolitan-Vickers, Dukinfield Works, Manchester |
| Build date | 1956–1957 |
| Total produced | 34 |
| Specifications | |
|---|---|
| UIC class | Bo′Bo′ |
| Gauge | 1,600 mm (5 ft 3 in) |
| Length | 12.8 m (42 ft 0 in) over buffers |
| Width | 2.9 m (9 ft 6 in) |
| Height | 4.3 m (14 ft 1 in) |
| Loco weight | 61.5 t (60.5 long tons; 67.8 short tons) |
| Fuel capacity | 300 imp gal (1,400 l; 360 US gal) |
| Prime mover |
Crossley ESTVee8; Re-engined '69-'80 with EMD 645E by CIÉ at Inchicore Works, Dublin |
| Engine type | Crossley V8 EMD 8-cylinder |
| Generator | DC |
| Traction motors | DC Metropolitan Vickers MV137CW, 4 o |
| Cylinders | 8 |
| Transmission | Diesel electric |
| Train brakes | vacuum brake and air |
| Performance figures | |
|---|---|
| Maximum speed | 80 mph (130 km/h) |
| Power output |
Crossley: 410 kW (550 hp) EMD: - 820 kW (1,100 hp) |
| Tractive effort | 153 kN (34,000 lbf) (max) |
| Career | |
|---|---|
| Operators | Córas Iompair Éireann Iarnród Éireann |
| Class | C; later 201 |
| Numbers | 201–234 |
| Withdrawn | 1973–1986 |
| Disposition | Three preserved, remainder scrapped |
The Córas Iompair Éireann 201 Class was a class of 34 diesel electric locomotives manufactured by Metropolitan-Vickers at their Dukinfield Works in Manchester. They were a smaller, lighter and less powerful version of the 001 Class and were originally intended for branch line passenger and freight (mixed traffic) duties. They were introduced in 1956 and, although their duties changed over the years, were in regular service on the Irish railway network until the mid-1980s.
Unfortunately, these locomotives suffered from two distinct problems:
Replacement engines: Because of the problems with the Crossley engines attempts were made to fit the locomotives with more suitable equipment. Between 1965 and 1980, Maybach MD650 engines of 980 horsepower (730 kW) were fitted in Nos. 233 and 234. From 1969, however, a permanent solution was found by fitting the entire class with General Motors engines, a similar process that was also undergone by the 001 Class).
New Duties: From 1969 the class were given new duties, being partnered with former 2600 class diesel multiple units converted to four-car push-pull carriage rakes to operate the suburban services around Dublin. In 1984 the Dublin suburban lines over which they worked were electrified and new electric multiple units operated the renamed Dublin Area Rapid Transit (DART) system.
The first member of the class to be withdrawn was No. B201, being bomb damaged in 1973. The remaining members of the class, except those sold to NIR, were withdrawn over the two years following the opening of the DART system having completed 30 years service for their operators.
When built, these locomotives were numbered C201-C234, and as locomotives were re-engined, they were renumbered B201-B234 to reflect their increased power. However, the prefix letter was later dropped.
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Wikipedia