|British Rail Class 175 Coradia|
Transport for Wales 175107 in October 2018
Interior of Arriva Trains Wales 175112 in 2009
|In service||20 June 2000 - present|
|Built at||Washwood Heath, Birmingham|
|Number built||27 sets|
|Number in service||27 sets|
|Formation||175/0: 2 cars per train set (DMSL-DMSL)|
175/1: 3 cars per train set (DMSL-MSL-DMSL)
|Capacity||136 seats per 2-car unit|
Transport for Wales
First North Western
First TransPennine Express
Wales and Borders
Arriva Trains Wales
|Car body construction||Steel|
|Car length||Driving end vehicles 23.71 m (77 ft in)|
Centre cars 23.03 m (75 ft in)
|Width||2.73 m (8 ft in)|
|Doors||Swing plug at vehicle ends|
|Articulated sections||Flexible diaphragm within unit only|
|Maximum speed||100 mph (160 km/h)|
|Weight||97.85 t (96.30 long tons; 107.86 short tons) or 144.14 t (141.86 long tons; 158.89 short tons) per set|
|Prime mover(s)||One per car, |
|Engine type||14-litre 6-cylinder turbo-Diesel|
|Power output||450 hp (340 kW) per engine|
|Transmission||Voith T211 hydraulic transmission|
ZF final drive
2 axles driven per car
|Braking system(s)||Friction/Hydrodynamic retarder (Retarders bypassed due to unreliability)|
|Safety system(s)||AWS, TPWS|
The Class 175 Coradia is a type of diesel multiple unit passenger train used in the United Kingdom. The fleet of 27 sets were built from 1999 to 2001 by Alstom at Washwood Heath in Birmingham. They are part of the Coradia family of trains along with the Class 180. They are the basis of Transport for Wales' express fleet, but cannot operate on all lines (including those fitted with ETCS).
The entire fleet is owned by the rolling stock company Angel Trains. They were originally leased to First North Western, but the fleet was since transferred to Arriva Trains Wales, and then Transport for Wales. For a brief period, units were also sub-leased to First TransPennine Express.
In September 1997, North West Trains placed an order with Alstom for 27 train-sets. The original order was for eleven two-carriage units with a top speed of 100 mph, seven three-carriage units with a top speed of 100 mph and nine three-carriage units with a top speed of 125 mph. This was reconfigured to eleven two-carriage and sixteen three-carriage units all with a top speed of 100 mph, worth £78 million, built to allow for the replacement of elderly Class 101 'heritage' DMUs and locomotive-hauled trains to Bangor and Holyhead. As they were constructed, the old locomotive sheds at Chester were replaced with a purpose-built facility in order to service the Class 175 units. Units were tested at low speed at the Severn Valley Railway before further testing and driver training at the Old Dalby Test Track from November 1999. The first unit entered service on 20 June 2000.
The two-carriage units are numbered 175001–011, and the three-carriage units 175101–116. Carriages are labelled as coaches A–B–C, with two-car units having no coach B. Each train has provision for two disabled passengers in coach A, and storage for two bicycles in coach C.
Early reliability problems meant that some services were operated by old rolling stock at short notice. Remedial work included improving brakes and bogies, and the reliability of the units is now greatly improved.
The entire Class 175 fleet was operated by First North Western from their introduction in 2000 until October 2003, when franchise changes led to North Wales Coast Line services being transferred to Wales & Borders; as a result most of the fleet was then used by Wales & Borders: First North Western's branding was removed from all the units, but the livery remained largely the same.
The fleet was transferred to Wales & Borders' successor Arriva Trains Wales in 2004, with some being sub-leased to First TransPennine Express, who took over First North Western's long-distance routes. First TransPennine Express took delivery of new Class 185 Desiro units in 2006, and the sub-leased Class 175s returned to ATW. On 14 October 2018, the Class 175 fleet transferred to Transport for Wales. The units have been based at the Chester depot throughout, and they have been operated in Wales, North-West England and the West Midlands.
The units were used on various services:
In 2003, the trains transferred to the Wales & Borders franchise and subsequently ATW. However, under a contractual agreement, 11 units were leased back daily from ATW to FNW and then later to First TransPennine Express for use on the Manchester Airport to Blackpool and Cumbria services until mid-December 2006, when that contract expired. They also continued to work the First North Western morning peak service between Chester and Manchester Piccadilly via Altrincham until December 2004.
The entire Class 175 Coradia fleet was transferred to Arriva Trains Wales when it took over responsibility for the North Wales Coast Line in 2004 and remained with the franchise throughout its life. All units were subsequently inherited by Transport for Wales upon their takeover of the franchise in 2018. The fleet is based at Chester Depot.
Class 175 units are in operation on daily Welsh Marches Line services to South Wales from Manchester and Holyhead, as well as on the North Wales inter-urban services between Manchester / Crewe and Chester / North Wales. One Sunday-only service sees the unit travel from Holyhead to Birmingham New Street via Stafford.
The units have also been cleared by Network Rail to operate the lines from Cardiff Central to Maesteg, Cheltenham and Ebbw Vale. They are not used on services to Aberystwyth and Pwllheli as they lack the ERTMS equipment required for the Cambrian Line.
All units are scheduled to be off-lease in 2021/22.
On 16 January 2010, 175103 operating the 08:30 service from Manchester Piccadilly to Milford Haven struck two cars at Moreton-on-Lugg crossing between Hereford and Leominster. The front seat passenger in one of the cars was fatally injured, although there were no casualties on the train. The train did not derail. The signaller had raised the barriers in error when the train was approaching the crossing, and he was arrested on suspicion of manslaughter in July 2010.
The same service collided with a trailer on the Morfa Main level crossing near Kidwelly on 31 January 2011. No-one was injured, but the unit involved, 175108, received nearly £82,000 worth of damage due to striking the trailer at 75 miles per hour (121 km/h). The farmer in charge of the trailer was sentenced to a 36-week suspended jail sentence and was ordered to carry out 200 hours of community work.
On 19 December 2011, 175002 collided with a lorry at the Llanboidy level crossing near Whitland. The train was operating the service from Milford Haven to Manchester Piccadilly and the driver of the lorry was arrested on suspicion of endangering safety.
Class 175 units have caught fire in 2004 at Preston (175008), 2009 at Prestatyn, 2011 at Manchester Piccadilly, 2017 both at Shrewsbury (175109) and between Chester and Crewe, 2018 at Deganwy, and in 2019 both near Pontrilas (175107) and at Gowerton (175102).
In February 2018, the entire Class 175 fleet was temporarily withdrawn from service for safety checks. After further investigation, it was found that a track fault between Newport and Cwmbran had caused wheel damage to several class 175 units, and also some Class 158s.
|Class||Operator||No. built||Year built||Cars per set||Unit nos.|
|Class 175/0||Transport for Wales||11||1999-2001||2||175001 - 175011|
|Class 175/1||16||1999-2001||3||175101 - 175116|
Some of the class have received names:
All except for Eisteddfod Genedlaethol Cymru were named by First North Western. The nameplates were all removed in 2009 when the fleet was repainted into Arriva Trains Wales livery.
175005 in the revised Arriva Trains livery at Newport.
175110 at Manchester Piccadilly on 17 April 2008 in the 'ghostly' livery tried out by ATW.
175112 and 175103 cross at Llandudno Junction.
Section 2.3:unit availability was over 60% on only one occasion
With the ongoing poor availability of Arriva Trains Wales North Wales Coast Class 175 units...
At Bangor station on 2nd August 2005 Bryn Terfel named 175003 Eisteddfod Genedlaethol Cymru
It is confirmed that the name Eisteddfod Genedlaethol Cymru on 175 003 did not survive the repainting experience. ATW seem to be removing all names as trains are repainted...[permanent dead link]