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Class A1 in the London and North Eastern Railway's classification system may refer to any of the following British steam locomotives :

• The GNR Class A1 or "Gresley A1", a class of 52 Pacific locomotives designed by Sir Nigel Gresley, including Flying Scotsman
• The LNER Thompson Class A1/1, a single Pacific locomotive designed by Edward Thompson and rebuilt from a Gresley A1
• The LNER Peppercorn Class A1, a class of 49 Pacific locomotives designed by A. H. Peppercorn
• LNER Peppercorn Class A1 60163 Tornado, a new locomotive completed in 2008, officially considered to be the 50th member of its class.

See also

• LNER Pacifics

References

1. "LNER Encyclopedia: The LNER A1 and A3 Gresley Pacifics".
2. Boddy, M.G.; Neve, E.; Yeadon, W.B. (April 1973). Fry, E.V. (ed.). Part 2A: Tender Engines - Classes A1 to A10. Locomotives of the L.N.E.R. Kenilworth: RCTS. p. 5. ISBN 0-901115-25-8.
3. Ian Allan ABC of British Railways Locomotives, summer 1961 edition, part 4, page 26
4. Boddy, Neve & Yeadon 1973, p. 174
5. Ian Allan ABC of British Railways Locomotives, summer 1961 edition, part 4, pp 26-27
6. Boddy, Neve & Yeadon 1973, p. 192
7. "Home". a1steam.com.

• Set index articles on locomotives
• London and North Eastern Railway locomotives
• 4-6-2 locomotives