stringtranslate.com

British Rail Class 27

British Rail's Class 27 comprised 69 diesel locomotives built by the Birmingham Railway Carriage and Wagon Company (BRCW) during 1961 and 1962. They were a development of the earlier Class 26; both were originally classified as the BRCW Type 2. The Class 27s were numbered D5347-D5415.[1]

Working life

27005 at Glasgow Queen Street.

Original allocations were D5347–D5369 to Glasgow Eastfield, D5370–D5378 to Thornaby and D5379–D5415 to London Cricklewood for Tilbury Boat trains and Cross-London freight services. In the period September to December 1963, some of the Cricklewood allocation were transferred to Leicester and in December 1965 the Thornaby allocation was also nominally transferred to Leicester to join them. Traffic changes combined with reallocation of Class 25s led to the gradual transfer of the Leicester and Cricklewood locomotives to Scotland during 1969 thus concentrating the whole class within Scotland and being part of the replacement fleet that allowed the withdrawal of the poorly performing Clayton Class 17 locomotives from traffic. For many years they were extensively used on the West Highland Line.

By September 1986, the final vacuum brake only locomotives had been withdrawn, regular duties on passenger services had ceased and only twenty-one of the class remained, allocated entirely to Eastfield depot. A mass withdrawal in July 1987 due to the presence of blue asbestos left 27008 as the last in service. Its final working was on 13 August and the loco was officially withdrawn on 19 August 1987. The Class 27s were actually outlived by the older Class 26s, whose less powerful engines were more reliable.

Sub-classes

Edinburgh-Glasgow push-pull operation

By the late 1960s, the Swindon-built Inter City DMUs operating the Edinburgh Waverley - Glasgow Queen Street express service were becoming unreliable. In 1970 the decision was made to replace them with locomotive-hauled carriages. So between 1971 and 1973, twenty-four Class 27s were fitted-up with dual (vacuum and air) brakes and reclassified Class 27/1, while 36 Mark 2 carriages (7 brake second opens, 22 open seconds, and 7 corridor firsts) swapped their vacuum-operated shoe brakes for air-operated disc brakes and were though-wired with "Blue Star" control cables to enable "top and tail" push-pull working. It was later decided that as the Mark 2 stock was dual (steam or electric) heated, to convert half the 27/1 fleet to electric train heat, by replacing the train heating boiler with a Deutz 8-cylinder, air-cooled diesel engine and alternator. The conversions were then classified as Class 27/2, and were used on one end of the train, with a 27/1 on the other.

The very intensive 90 mph (140 km/h) "push-pull" service was demanding on the locomotives and reliability started to suffer. The 27/2s, especially, appeared prone to fire damage, especially from their electric train heating alternators. The push-pull sets were replaced in 1980 by single Class 47/7s at one end of a rake of Mark 2 carriages and a DBSO. The Class 27/1s and 27/2s were then renumbered to 27/0 and could often be found on Edinburgh-Dundee semi-fast passenger services, until their replacement, briefly by Class 101 and subsequently by Class 150 Sprinter DMUs in 1987, whilst the remainder were largely used on freight.

Accidents and incidents

Fleet list

Preserved locomotives

Eight examples of the class have been preserved at various heritage railways in Great Britain.[9] Two members of this class were rescued from Vic Berry's Scrapyard in the 1980s. D5410/27059 was rescued from Vic Berry's Scrapyard in September 1987 [10] and D5401/27056 was also rescued from there in October 1987.[11]

Model railways

During the 1980s, Minitrix produced Class 27 models in British N gauge. In 2013, Dapol introduced DCC-ready models of 27032 in BR blue and D5356 in BR green, also in British N gauge.[12][13]

Notes

  1. ^ a b Webb gives DEL256 as being numbered D5413, 27 118, 27 212 [8]

Footnotes

  1. ^ "27 Bo-Bo". BRDatabase.
  2. ^ British Railways Locoshed Book 1974 edition. Shepperton: Ian Allan. 1974. pp. 21–22. ISBN 0-7110-0558-3.
  3. ^ Earnshaw, Alan (1991). Trains in Trouble: Vol. 7. Penryn: Atlantic Books. p. 41. ISBN 0-906899-50-8.
  4. ^ "BRCW Type 2: 1958–1976". DerbySulzers.com. Retrieved 11 September 2016.
  5. ^ Butlin, Ashley (1988). Diesels and Electrics for scrap. Penryn: Atlantic Books. p. 9. ISBN 0-906899-27-3.
  6. ^ "BR Class 27 Fleet". BRdatabase.info. Retrieved 11 September 2016.
  7. ^ a b c d e f g Strickland 1983, p. 85.
  8. ^ Webb (1978), p. 53.
  9. ^ "Preserved Diesels - Class 27". Archived from the original on 30 April 2008. Retrieved 28 October 2009.
  10. ^ Devereux, Nigel (12 May 2017). "A FIERY END". Rail Express. Rail Express. Retrieved 12 October 2020.
  11. ^ "Class 27 D5401". Great Central Railway. Retrieved 10 November 2020.
  12. ^ Burkin, Nigel (April 2013). "N gauge Class 27s". British Railway Modelling. Vol. 21, no. 1. Bourne: Warners Group Publications. pp. 98–100. ISSN 0968-0764. OCLC 1135061879.
  13. ^ Ando, Ben (February 2013). "Dapol Class 27". Model Rail. No. 178. Peterborough: Bauer. p. 31. ISSN 1369-5118. OCLC 173324502.

References

Further reading

External links

Wikimedia Commons has media related to British Rail Class 27.