British Rail Class 142
| British Rail Class 142 Pacer | |
|---|---|
Arriva Trains Wales Class 142 No. 142082 at Penarth
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The interior of an Arriva Trains Wales Class 142
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| In service | 1985 - Present |
| Manufacturer |
British Rail Engineering Limited, Derby Leyland Bus |
| Order no. |
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| Family name | Pacer |
| Constructed | 1985 - 1987 |
| Refurbishment |
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| Number built | 96 trainsets |
| Number in service | 94 trainsets |
| Number scrapped | 2 trainsets |
| Formation |
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| Diagram |
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| Fleet numbers |
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| Capacity |
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| Operator(s) | |
| Depot(s) | |
| Line(s) served | |
| Specifications | |
| Car body construction | Steel underframe. Aluminium alloy body and roof. |
| Car length | 15.55 m (51 ft 0 in) |
| Width | 2.8 m (9 ft 2 in) |
| Height | 3.86 m (13 ft) |
| Articulated sections | 2, flexible diaphragm within unit only |
| Wheelbase | 9 m (30 ft) |
| Maximum speed | 75 mph (120 km/h) |
| Weight | 48.23 t (47.47 long tons; 53.16 short tons) per trainset |
| Prime mover(s) | Cummins LTA10-R 6-cylinder 10-litre |
| Power output |
225 hp (168 kW) at 2100 rpm (Originally fitted with Leyland TL11 6-cylinder 11.1-litre 205 hp (150 kW) at 1950 rpm) |
| Transmission | Mechanical - later converted to Hydraulic |
| Train heating |
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| Braking system(s) | Air |
| Safety system(s) | AWS,TPWS |
| Coupling system | BSI |
| Multiple working | Classes 14x, 15x and 170 |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) standard gauge |
225 hp (168 kW) at 2100 rpm
The British Rail Class 142 is a class of Pacer diesel multiple-unit passenger trains used in the United Kingdom. 96 units were built by British Rail Engineering Limited in Derby between 1985 and 1987. They were a development of the earlier Class 141 which were introduced in 1984.
They were initially built for use on rural branch lines. However, as of April 2015 they are mainly used on busy commuter routes in the major cities in the north of England, with some also in use on local services around Cardiff. Until 2011, they also operated in Devon, by First Great Western.
Government legislation requires that all public passenger trains must be accessible by 1 January 2020. Only one of the 'Pacer' family of trains currently meets this requirement, which was refurbished by Porterbrook and branded as the Class 144e (e standing for Evolution). This is only a mock-up of what could be done to the 'Pacers' to make them accessible. Ramps were fitted at the doors, passenger information systems and announcements installed, and a disabled toilet fitted. It is currently in passenger service with Northern. No refurbishment of the Class 142s has been proposed by Angel Trains. The current Northern franchise operator must not operate any Pacer trains after 31 December 2019.
The unit's body is based on that of the original Leyland National bus, and many fixtures and fittings of the bus can be found on the units. Each unit has a seating capacity of any number between 102 and 121 passengers per two-car set. In theory there should be 106 or 121 seats per unit. However, many units have had seats removed to provide additional space for wheelchair access. The same engines and mechanical transmissions were used as on Class 141, as also the same double-folding external doors.
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