Locomotive numbering

From SVR Wiki
Jump to: navigation, search

Renumbering in service

Steam locomotives frequently carried more than one number during their working life. Renumbering usually came about through company mergers, in particular the Grouping of 1923, and Nationalisation in 1947, from which only the GWRGreat Western Railway emerged relatively unaffected. Following Nationalisation, SRSouthern Railway numbers were generally incremented by 30,000, LMSLondon Midland & Scottish Railway by 40,000 and LNERLondon & North Eastern Railway by 60,000. Companies also renumbered for other operational reasons, as happened to GWR 1450.[1]

Many diesel locomotives also carried more than one number in the BRBritish Rail or British Railways era. A new numbering policy was introduced in 1957 with diesel locomotives being numbered in groups according to their ‘Type’ (ie power classification):

Range Type Engine power
D1-D1999 Type 4The British Railways classification for diesel locomotives of 2000 bhp to 2999 bhp 2000 to 2999 hp
D2000-D2999 Shunters Under 300 hp
D3000-D4999 Shunters 300 to 799 hp
D5000-D6499 Type 2The British Railways classification for diesel locomotives of 1001 bhp to 1499 bhp 1001 to 1499 hp
D6500-D7999 Type 3The British Railways classification for diesel locomotives of 1500 bhp to 1999 bhp 1500 to 1999 hp
D8000-D8999 Type 1The British Railways classification for diesel locomotives of up to 1000 bhp 800 to 1000 hp
D9000-D9999 Type 5The British Railways classification for diesel locomotives of 3000 bhp or more Over 3000 hp

Some existing locomotives were therefore renumbered under this policy, for example the 13xxx series became D3xxx/D4xxx with 13022 becoming D3022. After the end of steam the 'D' prefix was omitted, so that for example D821 became 821. Classes 35 and 52 with their cast numbers and numberplates had the 'D' painted out (or sometimes removed), although enthusiasts sometimes removed the paint to leave the original prefix and number showing.

A more significant renumbering was carried out in the early 1970s after BRBritish Rail or British Railways introduced TOPS codes at the end of the 1960s. Diesel locomotives were allocated into classes with the class being the first two digits in the new locomotive number. D3022 was allocated into Class 08, resulting in another new number of 08015. Certain classes slated for early withdrawal were allocated a class number and never received the five figure TOPSTotal Operations Processing System, an American computer system adopted by BR from the late 1960s to number and manage rolling stock. number, these included the Class 11 and the WR diesel hydraulic Classes 14, 35, 42 and 52 now resident on the SVRSevern Valley RailwaySVRA:Severn Valley Railway AssociationSVRS:Severn Valley Railway Society.

Different numbers carried in preservation

Many locomotives have also carried more than one number in preservation. For consistency all locomotives are listed according to the last number they carried, usually that used by BRBritish Rail or British Railways following nationalisation. Locomotives that were owned by a main line company and were sold for use in industry are listed under their last main line number. Locomotives that ran under a different number while at the SVRSevern Valley RailwaySVRA:Severn Valley Railway AssociationSVRS:Severn Valley Railway Society were:

Steam

Current locomotives

  • 686: Also ran as Manchester Ship Canal No 14 'St. John' and as No 1 'Thomas' in blue livery. Currently liveried as 686 in ICI red livery.
  • 5764: Also ran as L95 in LT livery.
  • 7812 Erlestoke Manor: Also ran as sister 7802 Bradley Manor for a short time in 2012 for the visit of Olympian Bradley (now Sir Bradley) Wiggins.
  • 34027 Taw Valley: Also ran as sisters 34045 'Ottery St Mary' and 34036 'Westward Ho!', and in maroon livery as ‘Hogwarts Express’.
  • 42968: Also ran as LMSLondon Midland & Scottish Railway 2968. Being restored as LMSLondon Midland & Scottish Railway 13268.
  • 43106: Photographed in 2010 carrying number 43126.
  • 46443: Also ran as LMSLondon Midland & Scottish Railway 6443. Currently liveried as 46443.
  • 47383: Also ran as LMSLondon Midland & Scottish Railway 7383 and as No 1 'Thomas' in blue livery. Currently liveried as 47383.
  • 48773: Also ran as LMSLondon Midland & Scottish Railway 8233, cosmetically restored as WD307, currently liveried as 48773. Appeared as 48188 in 1971 for a film concerning the heroism of the late Driver John Axon GC[2].

Former residents

  • 45000: Ran as LMSLondon Midland & Scottish Railway 5000.
  • 45690 Leander: Ran as LMSLondon Midland & Scottish Railway 5690.
  • 61994 The Great Marquess: Ran as LNERLondon & North Eastern Railway 3442 while resident, but as 61994 when revisiting for the Spring 2010 gala.

Visitors with changed identities at the SVRSevern Valley RailwaySVRA:Severn Valley Railway AssociationSVRS:Severn Valley Railway Society

  • 4936 Kinlet Hall: Ran as sister 4930 Hagley Hall.
  • 47327: Butterley’s LMSLondon Midland & Scottish Railway Jinty appeared as ‘Thomas’ for two weekends in Spring 2012.

Diesel

Current locomotives

  • Ruston and Hornsby Shunter 319290: Also ran as fictitiously numbered D2957 prior to a repaint in May 2017.
  • BR Class 27 27059: Also ran as D5410 in green livery.
  • BR Class 42 D821 Greyhound: In 1996 ran as "Colin Massingham - Preservation Pioneer". Also carried "Despatch" plates as D812
  • 50031 Hood: Also ran in BRBritish Rail or British Railways Blue livery with her pre-TOPSTotal Operations Processing System, an American computer system adopted by BR from the late 1960s to number and manage rolling stock. number D431
  • 50035 Ark Royal: Also ran as fictitious 50135 in 'Loadhaul' livery
  • 50044 Exeter: Also ran in BRBritish Rail or British Railways Blue livery with her pre-TOPSTotal Operations Processing System, an American computer system adopted by BR from the late 1960s to number and manage rolling stock. number D444
  • 50049 Defiance: Also ran as 50149 in Railfreight Distribution two tone grey livery and in BRBritish Rail or British Railways Blue livery with her pre-TOPSTotal Operations Processing System, an American computer system adopted by BR from the late 1960s to number and manage rolling stock. number D449
  • D1015 Western Champion: Also ran with numbers and plates from scrapped sister D1058 Western Nobleman

The following is not normally resident on the SVRSevern Valley RailwaySVRA:Severn Valley Railway AssociationSVRS:Severn Valley Railway Society, but from time to time visit the railway for diesel galas and for attention by the owning groups' engineering staff.

  • 50007 Hercules: Also ran as 50007 as 'Edward Elgar' in green livery when visiting for galas.

In addition locomotives have run under other identities for film and TV productions filmed on the Severn Valley Railway

See also

References

  1. GWR 1400 Class - Wikipedia
  2. Williams (1974) p. 44.