British Rail Classes 485 and 486

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British Rail Class 485
British Rail Class 486
Shanklinstn.jpg
485045 at Shanklin.
In service1923 - 1964 on London Underground
1967 - 1992 on Island Line
Manufacturer Metro Cammell, Union Construction Company, Cammell Laird
Family name Tube
Successor Class 483
Formation
  • 4 cars per trainset (4-VEC)
  • 3 cars per trainset (3-TIS)
  • DMBSO+TSO+TSO+DMBSO (4-VEC)
  • DMBSO+TSO+DTSO (3-TIS) [1]

  • 5 cars per trainset (5-VEC from 1985)
  • 2 cars per trainset (2-TIS from 1985)
  • DMBSO+TSO+TSO+TSO+DMBSO (5-VEC from 1985)
  • DMBSO+DTSO (2-TIS from 1985) [2]
Diagram
  • EB261 (DMBS, 485, 486)
  • EB262 (DMBS, 485)
  • EE260 (DTS, 485, 486)
  • EH261 (TS, 485, 486) [3]
Capacity
  • 132 seats (4-VEC)
  • 106 seats (3-TIS)
Operators Network SouthEast
Specifications
Maximum speed45 mph (72 km/h) [4]
Weight
  • 94 t (93 long tons; 104 short tons) (4-VEC, set)
  • 65 t (64 long tons; 72 short tons) (3-TIS, set)
  • 32 t (31 long tons; 35 short tons) (MBSO)
  • 19 t (19 long tons; 21 short tons) (TSO)
  • 17 t (17 long tons; 19 short tons) (DTSO) [1] [4]
Electric system(s) 660 V DC 3rd rail [5]
Track gauge 1,435 mm (4 ft 8+12 in) standard gauge

The British Rail Class 485 (or 4Vec, later 5Vec) and British Rail Class 486 (or 3Tis, later 2Tis) electrical multiple units were originally built for the London Electric Railway from 1923-31 as its 'Standard' tube stock. They were purchased by British Rail in 1967 and transported to the Isle of Wight to work 'mainline' services on the newly electrified Ryde to Shanklin line, [1] [6] where they worked for an additional quarter of a century. At the time of their purchase the units had already worked for over 40 years on the London Underground, but their introduction allowed the last steam locomotives on the line to be withdrawn. [6]

Contents

History

Six four-car sets and six three-car sets were refurbished by BR's Stewarts Lane depot in 1966-67. The four-car sets were initially classified Class 452 and numbered 041-046, later reclassified Class 485 and numbered 485041-046. Each unit was formed of a driving motor, two intermediate trailers, and a second driving motor. Thus, the formation was DMBSO+TSO+TSO+DMBSO. Some of the intermediate trailers were former driving trailers, with the cabs locked out of use.

The three-car sets were classified Class 451 and numbered 031-036, later reclassified Class 486 and numbered 486031-036. A spare driving motor car was also refurbished, given the unit number 486037. Each of these units were formed of a driving motor, an intermediate trailer, and a driving trailer. Thus, the formation was DMBSO+TSO+DTSO.

When introduced, the units carried all-over BR blue livery. This progressed to standard blue/grey livery in the 1970s, and finally some units received Network SouthEast's blue livery with red and white stripes, following its introduction in 1986.

Electric services on the Isle of Wight commenced on 20 March 1967. In service, the 4Vec units often worked alone, but sometimes in combination with a 3Tis unit, such that a train was formed of seven coaches known as a 7 Vectis. [6] ("Vectis" was the Roman name for the Isle of Wight. [7] )

Reformation

In 1985, the Class 485 units were reformed into five 5 car (5Vec) units, and the Class 486 units into two 2 car (2tis) units. [8]

Withdrawal

Due to the proximity to the sea, the units suffered badly from corrosion damage. [9] By the mid-1980s it was clear that they needed to be replaced. The replacements came from the two-car Class 483, which were also rebuilt from former London Underground stock, namely 1938 tube stock. [10] These new units were introduced from 1989. The last 2Tis and 5Vec units were withdrawn from service in 1992. [1]

Upon retirement from Isle of Wight services, no 486 units were saved for preservation. However, several 485 vehicles were sold back to London Underground for eventual restoration as part of an operational 'Standard' stock museum unit. [11] These are listed below:

TypeNo.From setLT no.
DMBSO24850413706
DMBSO74850443209
DTSO274850435279
TSO444850447281
TSO494850447296

Of these five cars, only DTSO 5279 and TSO 7296 have been preserved, all the other cars were scrapped in Acton works in 2013 alongside other old Standard Stock Cars. During November 2011 the two long-stored DM vehicles 2 and 7 were despatched by LU to Eastleigh depot for component recovery and subsequent breaking up: this is believed to have occurred in December 2011 (although this has not been confirmed). Trailers 27 and 49 are incorporated into the LT museum's Standard stock museum train. Trailer 44 was scrapped in August 2012.

Fleet details

Class 486s at Ryde Pier Head. Rydephstn.jpg
Class 486s at Ryde Pier Head.
ClassOperatorNo. BuiltYear BuiltCars per SetUnit nos.
Class 485 Southern Region (Island Line)
Network SouthEast
61923
refurb. 1966
4, later 5485041–485046
Class 48663, later 2486031-486036
Class 485 (pre-1985)
Unit no.Carriage nos.
DMBSOTSOTSODMBSO
IoW LU IoW LU IoW LU IoW LU
04120330827 [T 1] 5279417286133141
04222301029 [T 1] 529342728015 [T 2] 3253
0432370631 [T 1] 5283437275193045
0444370233 [T 1] 5291447281213041
04563084457293487298233315
04683074497296467283253313
Class 486 (pre-1985)
Unit no.Carriage nos.
DMBSOTSODTSO
IoW LU IoW LU IoW LU
03113703477279265294
03233251927285285304
03353185937282305312
03473209947287325290
03593223957292345302
036113705967290365350
Spare103696

Notes

  1. 1 2 3 4 TSO vehicles which were originally DTSO with the cab locked out of use.
  2. The original car 15 ex 3253 was scrapped in 1971 and replaced by ex LT 3273, renumbered to 15 II

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References

  1. 1 2 3 4 "Class 485, 486 - 4VEC, 3-TIS". The Railway Centre. Archived from the original on 17 July 2012.{{cite web}}: CS1 maint: unfit URL (link)
  2. "Southern E-Group - Class 485 and 486". Archived from the original on 8 April 2008. Retrieved 2 April 2008.
  3. Vehicle Diagram Book No. 210 for Electric Multiple Units (Including A.P.T.) (PDF). Derby: British Railways Board. 1981. EB261, EB262, EE260, EH261. Archived from the original (PDF) on 3 March 2016. Retrieved 18 February 2016 via Barrowmore MRG.
  4. 1 2 Fox 1987, p. 92
  5. "Route Specifications 2016 Wessex" (PDF). Archived (PDF) from the original on 6 May 2021. Retrieved 4 April 2021.
  6. 1 2 3 "Welcome to the Southern E-mail Group Web Site". sremg.org.uk. Retrieved 23 March 2022.
  7. "Isle of Wight Nostlgia Site: Island History". Archived from the original on 6 January 2010. Retrieved 18 December 2009.
  8. "Southern E-Group - Class 485 and 486". Archived from the original on 8 April 2008. Retrieved 2 April 2008.
  9. "Southern Region". disusedrailways.co.uk. Archived from the original on 20 February 2012.
  10. Hardy, Brian (2003). Tube Trains on the Isle of Wight. Harrow Weald, Middlesex: Capital Transport. ISBN   1-85414-276-3.
  11. "CHTL - Preserved Underground Trains". Archived from the original on 21 June 2014. Retrieved 18 December 2009.

Sources

Bibliography

Further reading