The British Rail Class 319 is a dual-voltage electric multiple unit train capable of operating on 25 kV AC from overhead wires or 750 V DC from a third rail. They were built by BREL York for use on north-south cross-London services.
Built in two batches in 1987–88 and 1990, the units were primarily used on the then-new Thameslink service operating from Bedford to Brighton and various other destinations south of London. The majority of the fleet remained in use on the Thameslink route after its reshaping and privatisation in 1997. Some of the fleet was also used on various other services operating out of London Victoria, including flagship expresses to Brighton.
Since delivery of new Class 700 rolling stock for Thameslink services commenced in 2015, the Class 319 units have been redeployed for use on other operators' services, including in the North West of England.
In the 1980s, there were plans for a rail service that would link Bedford and Brighton. This became the first passenger route for many years to cross London from north to south, and was branded Thameslink by Network SouthEast, which operated it.
As the Thameslink service was to use a route with 25 kV AC OHLE north of Farringdon and along the branch to Moorgate, and 750 V DC third-rail electrification south of Farringdon, the Class 319 trains were built with dual-voltage capabilities, making them very versatile. They were also the first British Rail units to use modern thyristor control in place of a camshaft and resistor bank.
The body shape of the Class 319 is slightly different from contemporary electric units due to restrictions in the loading gauge in Kings Cross tunnel, which meant that other dual-voltage units were not suitable. They were also required to have emergency end doors in the cabs, due to the twin single-bore layout of Smithfield tunnel preventing normal train evacuation.
Two sub-classes of Class 319 units, 60 Class 319/0s and 26 Class 319/1s, were originally built. Over the years, units have been refurbished, creating five sub-classes, of which four still exist.
The first batch of 60 units, built in 1987–88, was classified as Class 319/0. Units were numbered in the range 319001–060 and had a maximum speed of 100 mph (161 km/h). Each unit consisted of four steel carriages: two outer driving trailers, an intermediate motor with a roof-mounted Stone Faiveley AMBR pantograph and four DC GEC G315BZ traction motors (two per bogie), and an intermediate trailer housing a compressor, motor alternator and two toilets. Seating was standard-class only, in 2+3 layout.
The technical description of the unit formation is DTSO(A)+MSO+TSO+DTSO(B). Individual vehicles were numbered as follows:
Vehicles were numbered in two ranges, corresponding to units 319001–046 and 319047–060. The gaps in the number series (e.g. 77382–77429) were filled by the Class 442 units, built around the same period.
DTSO(B) originally featured a lockable sliding door between the driving cab and the first set of power doors and tip-up longitudinal seating to enable parcels to be carried securely. This facility was rarely used and the sliding door has since been removed – but the tip-up seat area has been retained for carrying bicycles and wheelchairs.
Units 319001–013 are the remaining members of the 319/0 subclass; all others were converted to Class 319/2 or Class 319/4 in the late 1990s.
Built in 1990, this second batch of 26 units was numbered in the range 319161–186. The formation of the second batch of sets was similar to that of the earlier units, with the addition of first-class seating at one end of the train for use on longer-distance Bedford to Brighton services. Like the first batch, standard-class seating was of a 2+3 layout in standard class. First-class seating was in 2+2 layout.
Units were formed in the arrangement DTCO+MSO+TSO+DTSO. Individual vehicles were numbered as follows:
Vehicles were numbered in two ranges, corresponding to units 319161–180 and 319181–186. A more modern Brecknell Willis high speed pantograph was also fitted.
All 319/1 units were converted to Class 319/3 in the late 1990s.
In the late 1990s, seven of the Class 319/0 sets were converted especially for use on Connex South Central express services between London Victoria and Brighton. Work carried out at Railcare Wolverton included new, lower-density seating, a disabled toilet, and a special 'lounge' seating area in the saloon space below the pantograph in the MSO, where stowage for a refreshment trolley and a small serving counter were also fitted.
Units involved were renumbered from the series 319014–020 to 319214–220. They retain their low-density layout, but the lounge area has been replaced by standard seating since their return to use on Thameslink services.
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In the period 1997-99, Thameslink arranged for all of its 319/1 units to be converted at Eastleigh Works for use on the shorter-distance Luton to Sutton/Wimbledon services, then known as 'Thameslink CityMetro'. These units lost their first-class seating and were renumbered into the 319/3 series. They were painted in a navy-blue and yellow livery at this time.
Various refurbishments have taken place since 1999, including:
Units 319021-060 were refurbished for Thameslink at Railcare Wolverton in 1997/98. Work included the installation of a first-class compartment at one end, in the DTSO(A) vehicle and the removal of some seating in the centre of each vehicle to give 2+2 layout. Cosmetic improvements included new carpets and seat coverings, as well as application of the navy-blue Thameslink livery.
Upon completion, these units were renumbered as 319421-460 and moved on to the Bedford to Brighton service, branded as 'Thameslink Cityflier'.
From 2003 to 2005, during the Thameslink blockade, some minor interior updating took place such as recovering seats with an updated Thameslink moquette. First-class compartments were refurbished with new carpet, retrimmed seats and chrome-plated heater panels, apart from unit 319444, which retained its 1997-designed interior.
A later refresh was unveiled by the then new operator First Capital Connect on 26 October 2006. Unit 319425 was renamed Transforming Travel for the occasion and showcased the following improvements:
The refresh took place at Railcare Wolverton works and also featured both a mechanical overhaul (under the solebar) and a full exterior relivery, again in vinyl. Some Class 319/4 units have had their Stone Faiveley AMBR air and spring pantograph replaced by the more modern Brecknell Willis High Speed air-only pantograph design.
After the withdrawal of the final six Class 319 units from the Thameslink network on 27 August 2017, less than half of the original Class 319 fleet is currently in service, with the majority currently in storage at Long Marston. 32 units (24 319/3s and eight 319/4s) are currently allocated to Northern, with their 319/4 units due to be converted to Class 769 Flex bi-mode units by 2018. West Midlands Trains is the only other operator of the Class 319, with two 319/0, two 319/2 and five 319/4 units currently on fleet.
Northern operates 24 Class 319/3 and eight of 319/4 units along recently electrified routes in the North West of England. The first use of the fleet was on the Liverpool Lime Street to Manchester Airport via Chat Moss service on 5 March 2015, under the Northern Rail franchise.
From 17 May 2015, services from Liverpool to Wigan North Western via Huyton followed suit. The first batch of units that transferred to Northern Rail underwent a light refurbishment at Wolverton and were repainted into a dedicated Northern Electrics livery. The 750 V direct current (DC) third rail equipment was also removed. Although only recently repainted, these units were rapidly reliveried into the new Northern house colours, following the franchise transfer.
Other services now operated by Class 319s include Manchester Victoria to Liverpool via Earlestown, Liverpool to Warrington Bank Quay and Liverpool to Preston. In April 2016, these units transferred to new franchise operator Northern, who leased an additional twelve Class 319s to operate on newly electrified services from Blackpool North in 2018. In December 2016, it was announced that Northern's eight 319/4s are to be converted to Class 769 Flex bi-mode multiple units by Brush Traction at Loughborough, with the remaining 319/3s due to operate on existing and future electrified services.
Seven units were transferred to London Midland in 2015 to operate the Watford Junction to St Albans service and some peak West Coast Main Line services out of London Euston. These replaced the seven Class 321 units that transferred to Abellio ScotRail. In April 2017, one of the five Class 319/4 units, 319455, was swapped for 319433, with the latter receiving a light refresh and a repaint before entering service.
In December 2017, West Midlands Trains (a consortium of Abellio, JR East and Mitsui) took over the operation of the West Midlands rail franchise, with the seven Class 319 units initially leased by London Midland transferring to the new operator. A week later, West Midlands Trains leased an additional pair of Class 319 units (one 319/0 and one 319/2) on a temporary basis, enabling the company to take their 350/1 and 350/3 Desiro units out of service for their planned refurbishment.
West Midlands Trains' allocation of Class 319s will be replaced during the current franchise.
With the first units entering service for Thameslink in 1987, Class 319s were a mainstay on the Thameslink network for almost three decades. In early 2015, the first batch of units were withdrawn from the network after being displaced by Class 387 units. Twenty Class 319/3s transferred to Northern Rail for newly electrified lines in the North West, with the first units entering service for Northern Rail in March 2015 after a light refurbishment.
Since the introduction of the new Class 700 units in June 2016, Class 319s departed the network as new trains have entered service. A further batch of twelve units transferred to the North West of England for service with Northern, with the remainder being placed into storage at Long Marston. The six remaining Class 319 units were withdrawn from Thameslink service on 27 August 2017, around 30 years after their initial introduction to service.
When British Rail was privatised in the mid-1990s, the first 13 units (319001–013) were used for outer-suburban services by Connex South Central, with some temporarily losing their 25 kV AC overhead equipment. Seven more of the Class 319/0 sets (319014–020) were refurbished and dedicated to express services between London Victoria and Brighton, before later finding work on peak-only London Victoria to Guildford via West Croydon and London Victoria to Horsham via Three Bridges services. The dual-voltage capability was also used to introduce new services linking Rugby and Gatwick Airport via the West Coast and West London Lines in the 1990s.
Successor company Southern continued to operate the fleet and reliveried it into its own colour scheme. It later went on to sublease Class 319/0 units to First Capital Connect for use on the Thameslink route, before eventually releasing the entire fleet.
Units 319008 Cheriton and 319009 Coquelles are notable for two reasons:
Named units are as follows:
In December 2016, Northern and Porterbrook announced a plan to convert eight Class 319 units from pure EMUs to electro-diesel units, to allow through working between both electrified and non-electrified routes. These units, initially marketed as "Class 319 Flex", would use two diesel powered alternators, fitted under each of the driving trailer vehicles, to power the traction motors through the train's existing DC bus. The modifications are carried out as part of 'Flex' will allow units to operate on non-electrified routes, as well as on electrified routes, using both 25kV AC overhead wires and 750V DC third rail. The first units, redesignated Class 769, are envisaged to enter service with Northern by spring 2018. Each generator set will comprise an MAN D2876 diesel engine driving an ABB alternator.
|Class||Operator||No. Built||Year Built||Unit nos.|
|Class 319/0||West Midlands Trains||2||1987–88||319012–013|
|Class 319/2||West Midlands Trains||2||319216, 319220|
|Off Lease||5||319214–215, 319217–219|
|Class 319/3||Northern||24||1990||319361–371, 319374–386|
|Class 319/4||Northern||8||1987–88||319424, 319431, 319434, 319442, 319448, 319450, 319456, 319458[nb 1]|
|West Midlands Trains||5||319429, 319441, 319455, 319457, 319460|
|Off Lease||27||319421–423, 319425–428, 319430, 319432, 319435–440, 319443–447, 319449, 319451–455, 319459|
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