The Class 220 Voyager is a class of diesel-electric high-speed multiple-unit trains built by Bombardier Transportation for the British train operating company Virgin Trains, but are now operated by CrossCountry. They are air-conditioned throughout, with powered doors and a top speed of 125 mph (200 km/h). They were introduced to replace the thirty-year-old High Speed Train and Class 47 fleets. The trains were built between 2000 and 2001 and the first train entered service on 5 June 2001.[1]
Technical detailsBelow are the technical details for the Class 220 Voyager.[2] EngineAll coaches are equipped with a Cummins QSK19 diesel engine of 750 hp (560 kW) at 1800rpm. This powers a generator which supplies current to two longitudinally-mounted traction motors each driving one axle per bogie via final drives and cardan shafts. A Class 220 Voyager has a maximum range of approximately 1,350 miles (2,170 km) between each refuelling. FormationThere are 34 Class 220 Voyager trains; numbered 220001 to 220034. They provide 26 seats in first class and 162 seats in standard class. All vehicles are air-conditioned and fitted with at-seat audio entertainment systems and power sockets for laptop computers and mobile phone charging. The formation of a four car Class 220 Voyager is as follows:
The first class coach has its front coupler cover painted yellow to aid identification as a train approaches a station, as the nature of the Cross-Country network means that trains often get turned around. All Voyagers are maintained at the Central Rivers depot near Burton-on-Trent. The train interiors provide toilets for disabled people and storage facilities for bicycles. BrakesVoyagers make use of rheostatic brakes. This system brakes the train by using the motors of the train in reverse to generate electricity which is then dissipated as heat through resistors situated in a grid on the roof of each coach. This slows the train until, at a certain speed, the friction brakes blend in, since the rheostatic brake becomes less effective at lower speeds. This way the train is brought to a stand via a combination of the two systems. Using rheostatic brakes prolongs the life of the friction brake discs and pads. However, the rheostatic system has caused problems: the resistors are known to reach temperatures of up to 500 °C (932 °F). In one incident a small piece of wood from a tree had become lodged in these grids, which then started a fire on the roof of the train. This resulted in the train being evacuated at Cheltenham Spa.citation needed. The rheostatic brake applications can also be heard as a whining noise at certain seats at the ends of the saloon. CouplersThe Voyagers have Dellner couplers fitted which are the same type of couplers as the Class 390 Pendolino electric trains used by Virgin West Coast, and they can be coupled together in the event of a failure, although as the electrical systems are not compatible they are not coupled in normal service. The units are also capable of being pulled by Virgin's Thunderbirds, which are Class 57/3 locomotives used for rescue of failed trains that have been named after the eponymous TV series. Similar trainsThe principal differences between the Class 220 Voyager and otherwise very similar Class 221 SuperVoyager fleet are that the Class 221 SuperVoyager is designed to tilt when going around curves in order to allow higher speeds and that the Class 221 SuperVoyager usually consists of five coaches rather than the four coaches of a Class 220 Voyager. The requirement to tilt means that the bogies are very different in appearance. On the Class 220 the axles are fitted with internal axlebox bearings and hence the outside face of the wheel is visible. The bogies of the Class 221 have outside axlebox bearings and the wheels are obscured from view by the bogie frames. When operated by Virgin the two types had differently coloured Virgin 'shield' logos on the nose of the train to aid identification; the Class 220 Voyager had a silver background to the shields and the Class 221 SuperVoyager had red background. The Class 222 Meridian/Pioneer trains operated by East Midlands Trains and First Hull Trains are also similar, but more closely related to the Class 221 SuperVoyager in that they are also designed to tilt. They have a revised front and are, according to Bombardier Transportation, '80% new train'.citation needed OperatorsVirgin TrainsVirgin Trains were the sole operator of all Class 220 Voyager trains when they were introduced in 2001, but this changed when the new CrossCountry rail franchise began on 11 November 2007. Until 8 December 2007 the Voyager fleet was shared between Virgin Trains and CrossCountry. Virgin Trains no longer operate any Class 220 Voyagers. They still operate some Class 221 SuperVoyagers for their West Coast services. CrossCountryAs the winner of the new Cross Country franchise, CrossCountry have now inherited all of the 34 Voyagers from Virgin CrossCountry. CrossCountry have the following plans regarding the Voyager trains.[3]
Voyager names
Voyager arriving at Exeter St Davids in December 2007.
Virgin Trains named all the Class 220 Voyagers after places which they serve or companies which have relations with Virgin Trains. When the Class 220s were transferred to the new operator CrossCountry the names were removed. This table shows the names which the Voyagers had under Virgin Trains operation. As of August 2008, all 34 Voyagers are in the CrossCountry Colours:[4]
Problems
Voyagers are about half the length of their predecessors (four or five cars compared to seven previously), proponents of the units counter by pointing to the increased frequencies at which the trains operate. Therefore overall capacity is said to be at least equal to, or in some cases greater than, the trains they replaced. However, some critics have noted that in areas where frequencies have not increased (such as at the extremes of the network, and where services are limited), or in areas where trains carry large amounts of commuter or holiday traffic, Voyagers do sometimes struggle to cope with these loadings. Even if frequencies are increased, commuters still all pick the same "key" commuter train, resulting in overcrowding on that service. Many point out that the interior of the Voyager units suffer from much increased noise and vibration when compared to the non-powered Mark 2 and Mark 3 coaching stock they replaced, or compared to electric multiple units, due to the underfloor diesel engines. This might have had the effect of deterring a few passengers. The profile of the bodyshells is designed to allow clearance for tilting (although the Class 220s do not tilt, they use the same shell as the Class 221), this reduces the interior space, particularly above the waist. The electric interior doors close on a timer and do not have movement sensors to detect if a passenger happens to be walking through them or not. This often results on doors closing on passengers, unless the 'open' button is pressed again quickly. Christopher Garnett, former Chief Exectutive of rival operator Great North Eastern Railway considered them "cheap and nasty".[5] The trains have also been criticised for providing less space for cycle carriage due to the lack of a guard's van, coinciding with increased demand for cycle space by passengers, the current solution being a stricter system of advance cycle reservations being imposed by CrossCountry. Also, the "smelly toilet" condition in which smells from the toilets plagued the train, which was caused by superheated exhaust fumes passing near to the underframe toilet retention tanks, has apparently been fixed since. Fleet details
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