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British Rail Class 165
*Networker Turbo*
British Rail Class 165; Networker Turbo
	Great Western Railway Class 165 at Guildford
	Refreshed GWR Class 165 standard-class saloon
In service	10 September 1991 – present
Manufacturer	British Rail Engineering Limited
Built at	Holgate Road Works, York
Family name	Networker Turbo
Replaced	Class 104; Class 115; Class 117; Class 119;
Constructed	1990–1992
Refurbished	2003–2005 (165/0); 2010–2012 (165/1);
Number built	76; (39 × 165/0, 37 × 165/1)
Number in service	75
Number scrapped	1
Formation	2-car units: DMCL-DMS; 3-car units: DMCL-MS-DMS;
Fleet numbers	165/0: 165001–165039; 165/1: 165101–165137;
Capacity	2-car units: 186 seats (16 first-, 170 standard-class); 3-car units: 288 seats (24 first-, 264 standard-class);
Owners	Angel Trains
Operators	Chiltern Railways; Great Western Railway;
Lines served	Great Western Main Line; Chiltern Main Line; Severn Beach Line; Golden Valley Line; Wessex Main Line; Heart of Wessex Line; Avocet Line; Riviera Line; Tarka Line; Dartmoor Line;
Specifications
Car body construction	Welded aluminium
Car length	DM vehs.: 23.50 m (77 ft 1 in); MS vehs.: 23.25 m (76 ft 3 in);
Width	2.81 m (9 ft 3 in)
Height	3.79 m (12 ft 5 in)
Doors	Double-leaf sliding plug (2 per side per car)
Maximum speed	165/0: 75 mph (121 km/h); 165/1: 90 mph (145 km/h);
Axle load	Route Availability 1
Prime mover(s)	2 or 3 × Perkins 2006 TW-H (one per vehicle)
Engine type	Inline-6 4-stroke turbo-diesel
Displacement	12.2 L (742.64 cu in) per engine
Power output	260 kW (350 hp) per engine
Transmission	Voith T 211 rz (hydrokinetic, one per vehicle)
UIC classification	2-car: 2′B′+B′2′; 3-car: 2′B′+2′B′+B′2′;
Bogies	Powered: BREL P3-17; Unpowered: BREL T3-17;
Braking system(s)	Electro-pneumatic (disc)
Safety system(s)	AWS; BR ATP (165/0 only); TPWS; Tripcock (165/0 only);
Coupling system	BSI
Multiple working	Within class, and with Classes 166 and 168
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Notes/references
	Sourced from except where otherwise noted.

The British Rail Class 165 Networker Turbo is a fleet of suburban diesel-hydraulic multiple unit passenger trains (DMUs), originally specified by and built for the British Rail Thames and Chiltern Division of Network SouthEast. They were built by BREL York Works between 1990 and 1992.^[6] An express version was subsequently built in the form of the Class 166 Networker Turbo Express trains. Both classes are now referred to as "Networker Turbos", a name derived some three years later for the project that resulted in the visually similar Class 365 and Class 465 EMUs.

The class is still in service, now operated by Great Western Railway and by Chiltern Railways. When operated originally by Network SouthEast, along with that operator's Class 166 trains, the Paddington suburban units were initially known as Thames Turbos, while the units operated on the Marylebone suburban network were known as Chiltern Turbos.

Description

Externally, the class 165 can be distinguished from a Class 166 by the opening hoppers on every other window.

Class 165/0

Thirty-nine Class 165/0 Networker trains were built in 1990–91, in two batches, for the Chiltern subdivision of Network SouthEast, numbered 165001–039. Both 2-car and 3-car variants were built. Initially, thirty-three units were ordered (comprising the vehicles that made up units 165001-165022 and 165029–165039) but an additional order was placed for a further six units (165023-028). Units 165001-028 were delivered consecutively, as 2-car units, whilst units 165029-039 were delivered as 3-car units. These vehicles have a top speed of 75 mph (121 km/h). They are now all fitted with tripcocks for working over the London Underground lines between Amersham and Harrow-on-the-Hill, although upon delivery this equipment was only fitted to 165006–028. Automatic Train Protection is also fitted, making them one of the few classes to have both these features in Britain.

Each unit was formed of two outer driving motors, with an additional intermediate motor in the 3-car units. The technical description of the formation is DMOSL+MOS+DMOS. Individual carriages are numbered as follows:^[1]

58801-58833 (units 165001-022/029-039) and 58873-58878 (units 165023–028) - DMOSL
55404-55414 (units 165029–039) - MOS
58834-58866 (units 165001-022/029-039) and 58867-58872 (units 165023–028) - DMOS

Class 165/1

Thirty-seven Class 165/1 Networker trains were built in 1992 for the Thames line subdivision of Network SouthEast, numbered 165101–137. Like the Chiltern units, both 2-car and 3-car variants were built. Units 165101-117 were delivered as 3-car units, followed by the 2-car units 165118–137. They are regeared and fitted with bogie yaw dampers to allow a top speed of 90 mph (145 km/h), more suitable for mainline use.

Each unit was formed of two outer driving motors, with an additional intermediate motor in the 3-car units. The technical description of the formation is DMOCL+MOS+DMOS. Although still listed on the vehicle data sheets at DMCL vehicles, the first-class area has been removed from 2-car 165s operated by GWR. As such these vehicles are now technically DMOSL vehicles. The 3-car units were similarly declassified, but the first-class accommodation has now been reinstated on these. Individual carriages are numbered as follows:^[1]

58953-58969 - DMCL
58879-58898 - DMOSL changed from DMCL in 2015^[7]
55415-55431 - MOS
58916-58932 and 58933-58952 - DMOS

Unit 165115 was destroyed in the Ladbroke Grove rail crash.^[8]

Accidents and incidents

Ladbroke Grove rail crash: On 5 October 1999, unit 165115 passed a signal at danger while leaving London Paddington on a Thames Trains service. This resulted in a serious collision with a London-bound HST service. 31 people were killed (24 of them on board the Class 165, the leading coach of which was completely destroyed by the impact) and 417 were injured.
On 30 June 2005, unit 165037 was approaching the Gerrards Cross Tunnel, which was under construction, when the driver realised that the line was blocked. An emergency stop was made and the train came to a halt 250 to 300 yards (230 to 270 m) before the tunnel, which had partially collapsed. The train returned wrong line to Denham Golf Club where the passengers were detrained.^[9]
On 16 June 2016, unit 165124 was derailed by a set of trap points at Paddington after passing a signal at danger, causing significant disruption to services. The driver's assistant's side of the cab was destroyed after the train hit a stanchion that holds up the overhead catenary after derailing. The vehicle was moved after two days in position at Paddington to Old Oak Common Depot to be taken away by road for assessment and repair work.^[10]
Unit 165128 was in service as a hybrid unit with 58609 (MOS vehicle from 166209) inserted in the middle from November 2015 until May 2016. This was due to one of its driving vehicles being damaged in an engine fire on the North Downs line in November 2015,^{[clarification needed]} rendering it out of service, and so to provide another 3-car train in service.^[11]
On 21 June 2020, units 165015 and 165006 formed a passenger train that passed a signal at danger (a SPAD) and was in danger of colliding head-on with a passenger train formed of London Underground S stock at Chalfont & Latimer. The two trains stopped 23 metres (25 yd) apart. Driver fatigue was found to be the cause of the SPAD.^[12]

Operations

Chiltern Railways

The 165/0 units were originally delivered in Network SouthEast livery for used on routes including fast services from London Marylebone to Princes Risborough and Banbury and local services from Aylesbury to London and Princes Risborough. In this role they replaced the Class 115 DMUs. They were later used further afield, when Chiltern services were extended to serve Leamington Spa, Warwick, Solihull and Birmingham Snow Hill / Birmingham Moor Street railway station.

In December 1993, due to a downturn in traffic as a result of the recession, units 165001-007 were transferred from the Chiltern lines of Network SouthEast to the Thames lines (from Aylesbury to Reading depots). All vehicles had their tripcock equipment removed before transfer. The following year, unit 165007 was returned to the Chiltern lines, followed by 165006 in 1995. Due to unavailability of tripcock equipment upon their return, the units were coupled cab-to-cab and operated for some months between the vehicles of other units as semi-permanently formed four-car units - until tripcock equipment became available, allowing them to be restored to operational two-car units. Following privatisation, two former Chiltern units (165003 and 165005) were repainted into Thames Trains livery. Chiltern Railways inherited 34 Class 165/0 units from Network SouthEast, and the remaining five were returned from Thames Trains in 2004 - leaving Chiltern Railways operating the whole subclass.

After privatisation they continued to work similar services as before but, with the arrival of the faster Class 168 Clubman units, the 165 Turbo trains were displaced and are now found less often on expresses to Birmingham, generally working on shorter routes such as stopping services to Aylesbury, High Wycombe, and Stratford-upon-Avon and also the Birmingham Moor Street - Leamington Spa local services.

A new depot was built at Aylesbury in 1990/1991 for the maintenance of these trains and has been enlarged since British Rail days, with the addition of a wheel lathe. Light maintenance and refuelling is carried out at Wembley LMD and Tyseley TMD, and units can occasionally be found at Stourbridge LMD. Units are also regularly stabled in the Marylebone station environs, Aylesbury South Sidings and at Banbury, where a further depot is currently under construction at the south end of the station on the western side of the line.

All Chiltern units were refurbished between late 2003 and early 2005.^[6] Air conditioning was added and the opening hopper windows replaced with sealed units. A new passenger information system, similar to that on the Class 168 Clubman trains, CCTV cameras and an area designated for the use of wheelchair users were added and the first-class section was removed, as Chiltern became a standard-class-only railway in 2003. The original 3+2 seating at the outer ends of the driving vehicles was replaced by new 2+2 high-back seating. The existing 3+2 low-back seating was retained in the centre areas of the driving vehicles and throughout the centre vehicles of the three-car units. A cycle/wheelchair area with tip-up seats was also added to each unit. A further refurbishment began in 2015, concentrating on the toilet areas, to make these units fully Disability Discrimination Act 1995 (DDA)-compliant for operation beyond 2020.

They can often be found on the Aylesbury to London Marylebone routes including the Princes Risborough shuttle.

Great Western Railway

Thames Valley

The Class 165/1 fleet were built for local services from London Paddington along the Great Western Main Line; their main destinations included local trains to Reading, Greenford, Newbury, Bedwyn, Oxford, and Banbury, and services along the branch lines to Windsor & Eton Central, Henley-on-Thames, Marlow and Bicester Town.

Following the privatisation of British Rail, the franchise was won by the Go-Ahead Group, who operated it as Thames Trains from 1996 to 2004 and inherited all the Class 165/1 Turbo trains as well as the first five Class 165/0 Turbo trains that had been transferred from the Chiltern lines. In April 2004, operation of the Thames Trains franchise passed to First Great Western Link. In 2004, due to deliveries of new Class 180 Adelante units on sister company First Great Western, the five Class 165/0 Turbo units became redundant and were transferred to Chiltern Railways.

In January 2010, First Great Western announced an £8 million refurbishment programme for its fleet of Classes 165 and 166 Turbo DMU trains:^[13]

seats re-trimmed
interiors repainted
Passenger Information Displays replaced with a GPS-based system
upgraded lavatory facilities
flooring stripped and replaced

In 2012, First Great Western took delivery of Class 180 Adelante units for Cotswold Line services, and three-car Class 150 Sprinter units for Reading to Basingstoke Line services, allowing Class 165 and 166 units to be used to reinforce Thames Valley services.^[14]

In late 2015, as part of the rebranding to GWR, the Class 165 fleet had all first-class sections removed to increase capacity.^[7]

Following the electrification of the Great Western Main Line up to Didcot Parkway, as well as the Reading-Taunton line as far as Newbury, services between London Paddington and Didcot Parkway, as well as between Reading and Newbury, have been operated by new Class 387 electric multiple units,^[15] allowing much of the existing Class 165 fleet to move to the Bristol area. Class 165s continue to service the aforementioned branch lines, but no longer run to London Paddington except during peak hours.

Bristol area

Following the transfer of the 166 units to St Philip's Marsh depot in July 2017, some of the 165 services have since followed on with the first 165 operating in the Bristol area in July 2018. Since then and alongside the 166s, they have rapidly been introduced on other services such as the Weston-super-Mare to Filton Abbey Wood (now Weston-super-Mare / Bristol Temple Meads to Severn Beach / Filton Abbey Wood) services, the Cardiff Central to Taunton services, the Golden Valley Line, the Heart of Wessex Line and also some services on the Wessex Main Line as far as Warminster and Southampton Central. In January 2019, they began operating the regional service between Cardiff Central and Portsmouth Harbour which allowed more of the Class 158 units that solely operated this service to move more west.^[16]

The transfer of the 165 (and 166) units to services in and around Bristol and Exeter have overall allowed units that previously operated these services to move further west, such as the Class 150 and Class 158 units.^[17] More so than the 166 units, a lot of the 165 units remain to be based at Reading TMD where they continue to operate Thames Valley services.

Fleet details

Class	Operator	Qty.	Year built	Cars per unit	Unit nos.	Notes
165/0	Chiltern Railways	28	1990–1991	2	165001–165028	165004 fitted with hybrid powertrain^[18]
165/0	Chiltern Railways	11	1990–1991	3	165029–165039
165/1	Great Western Railway	16	1992	3	165101–165114, 165116–165117
	Great Western Railway	20	1992	2	165118–165137
	Scrapped	1	1992	3	165115	Destroyed in the Ladbroke Grove rail crash.

Chiltern Railways 3-car Class 165/0 unit

Great Western Railway 3-car Class 165/1 unit

Named units

Some units have been named these are as follows:

165119 Norman Topson MBE^[19]
165120 Roger Watkins The GWR master train planner^[20]

Hybrid powertrain

It was reported in September 2018 that Angel Trains was to convert class 165 units for Chiltern Railways to hybrid diesel and battery-powered trains.^[21]

In April 2020, two-car unit 165004 was sent to LORAM rail at Derby for HyDrive conversion.^[22]

In August 2023 it was announced that the project had been abandoned.^[23]

References

^ ^a ^b ^c ^d ^e ^f Colin J Marsden. "Technical Data: Class 165". Archived from the original on 27 October 2007. Retrieved 17 March 2010.
^ ^a ^b Perkins 2000 Series User's Handbook (PDF) (12th ed.). Shrewsbury: Perkins Engines Company. May 1999. p. 9. TSD 3215E. Archived (PDF) from the original on 27 January 2018. Retrieved 7 December 2022.
^ System Data for Mechanical and Electrical Coupling of Rail Vehicles in support of GM/RT2190 (PDF). London: Rail Safety and Standards Board. 22 June 2011. p. 4. SD001. Archived from the original (PDF) on 1 April 2012. Retrieved 22 November 2022.
^ Webster, Neil; Hall, Peter; Fox, Peter (2001). British Railways Locomotives & Coaching Stock 2001. Sheffield: Platform 5 Publishing. pp. 207, 208. ISBN 1-902336-19-4.
^ "Regional Passenger Trains - Class 165". London: Angel Trains. Archived from the original on 16 July 2019. Retrieved 18 December 2022.
^ ^a ^b "About us - Our train fleet". Chiltern Railways. Archived from the original on 3 July 2010. Retrieved 26 August 2008.
^ ^a ^b "First Great Western gets rid of First Class on Reading trains". Rail. Peterborough. 8 September 2015. Retrieved 7 February 2016.
^ "Thames Trains fined £2m for Ladbroke Grove crash". The Daily Telegraph. London. 5 April 2004. Retrieved 27 April 2010.^{[failed verification]}
^ "Investigation Report" (PDF). London: Health and Safety Executive. 15 July 2010. pp. 21–22. Retrieved 28 July 2022.
^ "Train derails at Paddington: Services disrupted in and out of station". BBC News. 16 June 2016. Retrieved 17 June 2016.
^ Chapple, James (16 November 2015). "Passengers 'standing around in country lane' after train fire". Surrey Live.
^ "Signal passed at danger and subsequent near miss, Chalfont & Latimer station 21 June 2020" (PDF). Rail Accident Investigation Branch. Retrieved 26 July 2021.
^ "Train operator gives Thames Valley Trains an £8 million makeover" (Press release). First Great Western. 25 January 2010. Archived from the original on 11 June 2011.
^ "Return of Adelantes to First Great Western confirmed". Railnews. 23 November 2011. Retrieved 23 November 2011.
^ Herring, John (31 December 2018). "More train seats for commuters from Wednesday". Newbury Today.
^ Holden, Alan (5 October 2019). "New timetable for South Wales launched by Great Western Railway". RailAdvent. Retrieved 13 February 2020.
^ "New timetable for South Wales launched by Great Western Railway". RailAdvent. 5 October 2019. Retrieved 30 March 2021.
^ "'Cleaner, quieter and quicker' diesel-battery hybrid train enters passenger service". Railway Gazette International. Sutton: DVV Media International. 14 February 2022. Retrieved 14 February 2022.
^ "Stock Changes". Today's Railways UK. No. 258. August 2023. p. 62.
^ "Stock Update". The Railway Magazine. No. 1470. August 2023. p. 95.
^ "Hybrid battery trains set to shorten commuter journey times". Financial Times. London. Retrieved 19 September 2018.
^ "'165' at Derby for hybrid conversion". Rail. Peterborough. 6 May 2020. Retrieved 8 June 2020.
^ "New trains to replace Chiltern's Class 165 DMUs". Railways Illustrated. No. 247. August 2023. p. 9.