British Rail Class 502
Encyclopedia
The British Rail Class 502 was a type of electric multiple unit originally built by the London Midland and Scottish Railway at their Derby Works
Derby Carriage and Wagon Works
Derby Carriage and Wagon Works was built by the Midland Railway in Derby, England. The plant has been through many changes of ownership and is currently owned by Bombardier Transportation, a subsidiary of Bombardier Inc. of Canada. As of 2011 it is the only remaining passenger rolling stock...

. Introduced in 1940 and withdrawn by 1980, they spent the whole of their working lives on the electrified railway lines of north Liverpool
Liverpool
Liverpool is a city and metropolitan borough of Merseyside, England, along the eastern side of the Mersey Estuary. It was founded as a borough in 1207 and was granted city status in 1880...

.

The trains were designed to replace older electric trains built by the Lancashire and Yorkshire Railway
Lancashire and Yorkshire Railway
The Lancashire and Yorkshire Railway was a major British railway company before the 1923 Grouping. It was incorporated in 1847 from an amalgamation of several existing railways...

 on the lines from Liverpool Exchange station to Southport
Southport
Southport is a seaside town in the Metropolitan Borough of Sefton in Merseyside, England. During the 2001 census Southport was recorded as having a population of 90,336, making it the eleventh most populous settlement in North West England...

 and Ormskirk
Ormskirk
Ormskirk is a market town in West Lancashire, England. It is situated north of Liverpool city centre, northwest of St Helens, southeast of Southport and southwest of Preston.-Geography and administration:...

. These lines were electrified with a Direct Current
Direct current
Direct current is the unidirectional flow of electric charge. Direct current is produced by such sources as batteries, thermocouples, solar cells, and commutator-type electric machines of the dynamo type. Direct current may flow in a conductor such as a wire, but can also flow through...

 (DC) third rail. The Class 502s entered service between 1940 and 1943. They were DC-only and operated as both 3-car and 2-car sets, which could be coupled together to form 5-car sets for use on the busier services.

Design

A very modern design for the time, they were equipped with air-operated sliding doors. They were similar to (but somewhat larger than) the Class 503s
British Rail Class 503
British Rail Class 503 trains were 70 mph electric multiple units. They were introduced in two batches — in 1938 by the London, Midland and Scottish Railway with a further batch in 1956 by the then nationalised British Railways...

 operating on the Wirral
Wirral Peninsula
Wirral or the Wirral is a peninsula in North West England. It is bounded by three bodies of water: to the west by the River Dee, forming a boundary with Wales, to the east by the River Mersey and to the north by the Irish Sea. Both terms "Wirral" and "the Wirral" are used locally , although the...

, being both longer and wider, the latter allowing 3+2 seating on the Southport 502s compared to 2+2 seating on the Wirral 503s. In addition the 502s had distinctive large resistance cooling grids mounted on top of the cab roof of the motor units. Virtually all electric suburban passenger trains in Great Britain now follow the basic layout pioneered by the Class 502s and 503s, with two sets of double-leaf air operated sliding doors on each side of each carriage.

Build

Unlike the Wirral Class 503s, which were built by contractors familiar with this type of layout on London Underground trains, the 502s which followed shortly afterwards were built by the LMS's own workshops in Derby. The 502s had conventional railway buffers at the end of each set, as they did a considerable amount of interworking with steam and later diesel services, whereas the 503s in the Wirral had automatic Buckeye couplers and no buffers, as they did very little inter-running with services from outside.

Interiors

Apart from the construction differences, both types of train were given heavy overhauls at Horwich works, and the common red/black/grey seat moquette, and grey paint used on the interiors, plus other common details, gave them a considerable air of similarity.

Route changes

Liverpool Exchange station closed in 1977, being replaced by new underground stations at Moorfields
Moorfields railway station
Moorfields station is an underground railway station in Liverpool, England. It is situated on both the Northern and Wirral Lines of the Merseyrail network and is the only station on the network which has services to all other Merseyrail stations....

 and Liverpool Central
Liverpool Central railway station
Liverpool Central railway station is a railway station in Liverpool, England, and forms the central hub of the Merseyrail network, being on both the Northern Line and the Wirral Line. In the years 2008/09, Liverpool Central station was shown to be the busiest station in Liverpool, despite being...

 as part of the Northern Line
Northern Line (Merseyrail)
The Northern Line is one of the two commuter rail lines operated by Merseyrail in Merseyside, England. The other line is the Wirral Line. A third line of the Merseyrail Network, the City Line, is not owned or operated by Merseyrail, although funded by Merseytravel.The Northern Line passes...

 of the Merseyrail
Merseyrail
Merseyrail is a train operating company and commuter rail network in the United Kingdom, centred on Liverpool, Merseyside. The network is predominantly electric with diesel trains running on the City Line. Two City Line branches are currently being electrified on the overhead wire AC system with...

 network. The electrification was also extended to Kirkby
Kirkby
Kirkby is a town in the Metropolitan Borough of Knowsley in the metropolitan county of Merseyside in England. The town was developed from the 1950s through 1970s as a means to house the overspill of Liverpool. It is situated roughly north of Huyton, the administrative HQ of the borough and about...

 and Garston
Garston, Merseyside
Garston is a district of Liverpool, Merseyside, England. It is bordered by Aigburth, Allerton, and Speke.-History:Gaerstun, meaning 'grazing settlement' or 'grazing farm' in Old English, is one possible root of the name....

, using Class 502s. The units struggled to cope with the challenging gradients in the new underground sections, which are as steep as 1 in 30 in places, and their reliability suffered.

Depots

The principal depot was north of Hall Road, halfway from Liverpool to Southport, and there were major stabling sidings on both sides of the line outside Southport station, as well as minor stabling points elsewhere.

Numbering

British Railways numbers were:
  • Motor Open Brake Second, M28311M-M28369M
  • Trailer Open Second, M29545M-M29594M
  • Trailer Open Second (built as composite), M29812M-M29820M
  • Driving Trailer Open Composite, M29866M-M29899M

Formation

These formed, notionally, 34 3-car units Motor-Trailer-Driving Trailer, and 25 2-car units Motor-Trailer. The 2-car units only had a driving cab at one end and could not be operated on their own, only coupled to one of the 3-car units, which was an unusual feature of this stock. It was normal to form the main 5-car sets with the motor cars at the outer ends of the formation, and the trailer coupled to the driving trailer in the centre.

There were a number of different formations used, but 5-car sets were usual on the main Southport and Ormskirk routes, with a couple of the busiest peak trains being 6-car, formed of two three-car units coupled together. The Crossens shuttle was a 3-car unit, or a specially formed Motor-Driving Trailer 2-car unit.

As initially built there was considerable overprovision of first class accommodation, which usually ran virtually empty on these routes. This is an issue seen on some other suburban routes as well. The composite trailers were eventually converted to all-second, and the driving trailers followed in the 1970s when first class provision was finally withdrawn on these routes.

Livery

The units were painted various colours over the years. When initially built in 1939 they were the standard LMS maroon red. After railway nationalisation in the late 1940s they were all repainted the standard BR dark green for EMUs. When BR changed their liveries in the mid-1960s the units were repainted plain Rail Blue. Towards the end of their life, in the late 1970s, they were repainted again in their first two-tone livery, the standard blue and grey, in which scheme they were withdrawn.

Withdrawal and preservation

From 1978, new Class 507
British Rail Class 507
British Rail Class 507 electric multiple units were built by BREL at York works in two batches from 1978 to 1980. The first thirty sets were constructed from September 1978 to mid-1979 and a further three were added during 1980...

 units began to arrive on the network and the 502s, which by now were considered life-expired, were gradually withdrawn. The last set was taken out of service by the end of 1980. Compared to the similar 503s on the Wirral lines, the Southport 502s appeared run-down and distinctly down-at-heel by the end of their life, with dented panels and peeling paint whereas the Wirral units appeared tidy and well-presented to the end.

All were scrapped, except for a 2-car set (driving motor 28361 and driving trailer 29896) which was claimed for preservation by the National Railway Museum
National Railway Museum
The National Railway Museum is a museum in York forming part of the British National Museum of Science and Industry and telling the story of rail transport in Britain and its impact on society. It has won many awards, including the European Museum of the Year Award in 2001...

. For many years the unit was kept at the Steamport centre in Southport
Southport
Southport is a seaside town in the Metropolitan Borough of Sefton in Merseyside, England. During the 2001 census Southport was recorded as having a population of 90,336, making it the eleventh most populous settlement in North West England...

, where it was restored to original LMS condition, complete with maroon livery. It operated occasional special services on the Merseyrail electric network for several years in the 1980s. However, when Steamport closed, the NRM were unable to find an alternative location to display it, and relocated the unit to remote storage at MoD Kineton.

In early 2007, it was suggested that the NRM are considering disposing of this unit as it no longer features as part of its long term plans. In response, a new preservation group (The Friends of the 502) was formed, with the aim of taking over responsibility for the unit's upkeep. In May 2009 the unit was moved by road to a private site in Tebay
Tebay
Tebay is a village and civil parish in Cumbria, England, within the traditional borders of Westmorland. It lies in the upper Lune Valley, at the head of the Lune Gorge. The parish of Tebay had a population of 728 recorded in the 2001 census,...

, Cumbria
Cumbria
Cumbria , is a non-metropolitan county in North West England. The county and Cumbria County Council, its local authority, came into existence in 1974 after the passage of the Local Government Act 1972. Cumbria's largest settlement and county town is Carlisle. It consists of six districts, and in...

. It is expected that repair and restoration work will begin shortly.

External links

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