British Rail Class 314
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| British Rail Class 314 | |
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 314207 at Gourock railway station. |
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| In service | 1979 - Current |
| Manufacturer | BREL York |
| Number built | 16 trainsets |
| Formation | 3 cars per trainset |
| Capacity | 212 seats |
| Operator | First ScotRail |
| Specifications | |
| Car length | 19.80 m |
| Width | 3.58 m |
| Height | 2.82 m |
| Maximum speed | 75 mph (121 km/h) |
| Weight | 102.5 t |
| Power output | 656 kW |
| Gauge | 1,435 mm |
| Voltage | 25 kV AC Overhead |
British Rail Class 314 electric multiple units were built by BREL at York works from 1978 to 1979. They were the second variety of British Rail's then-standard 1972 design for suburban EMUs, which eventually encompassed 755 vehicles and five Classes (Class 313/314/315/507/508). Able to operate from 25kv overhead current collection only, the fleet works outer-suburban services on the SPT rail network in Central Scotland.
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[edit] Description
These 16 3-car units were introduced between 1979 and 1980 to operate on the then newly opened Argyle Line, and were used on both this and the North Clyde routes until 2002, when the scrapping of the elderly Class 303 stock led to much stock cascading within the SPT network. The 314 was based on the experimental Class 445 or "PEP" unit, the design of which spawned the sister classes 313 and 315 which were used are used extensively in the London commuter area.
In line with the other PEP-based classes, the 314s consist of two outer motor cars with an unpowered trailer vehicle in the middle, giving a technical description of DMSO+PTSO+DMSO. The coaches are of integral aluminium alloy construction based on a steel underframe. Each 3-car set can seat up to 220, and following the standard practice in the Glasgow suburban sector, peak time services can be formed by operating two units in multiple to form a 6-car train.
[edit] Current operations
Today, they are mostly found working on the Cathcart Circle, Neilston and the Newton line. A small number of units also usually work Inverclyde Line services to Wemyss Bay and Gourock, particularly during peak hours.
The 314 units are now the oldest on the SPT network, and are unique in that they have not yet been internally refurbished (the leading motor coach of unit 314203 was replaced in 1992 by an ex Class 507 coach after the original was destroyed in the Newton rail crash and differs from the other units due to its blue interior compared to the yellow of the others), whilst units 314208 and 314212 were severely damaged when they were "drowned" in an Argyle Line tunnel following the River Kelvin bursting its banks in torrential rain at the end of 1994.
In May 2006 a limited mechanical refurbishment programme to the units was initiated, with upgraded door mechanisms and upgrades to the electrics and AWS equipment. 314202 lost its classic SPT orange/black livery (the last remaining multiple unit in Scotland to carry the old livery) in favour of the current carmine/cream scheme, when it passed through Glasgow Works at the end of November 2006.
314206 has entered Glasgow Works on the 20 July 2007. This is the final unit to receive a major overhaul pending a decision on the future of the Class 314.
[edit] Future
314206 is in Glasgow Railcare, which is the final unit in the current overhaul programme. A decision is due soon on possible replacement, and as such, all 314s have not been fitted with on-train monitoring recorder (OTMR) equipment and have been granted a derogation pending a decision on the future of the fleet.
There has been much speculation over the future of the 314s - it was suggested that they may be replaced in a stock cascade initiated by converted Class 458s (the DC version of the Class 334 "Juniper" units already used elsewhere on the SPT network).
Due to high costs in converting the Class 458s and SWT now retaining the Class 458, the Class 314 will be replaced around 2010, by displaced Class 320s. It is expected that the Class 320s will only operate Newton/Neilston/Cathcart Circle services, which will mean a major increase in capacity on this these lines which are at times overcrowded.
[edit] External links
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