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 [1][2]
- The LNER Thompson Class A1/1, a single Pacific locomotive designed by Edward Thompson and rebuilt from a Gresley A1 [3][4]
- The LNER Peppercorn Class A1, a class of 49 Pacific locomotives designed by A. H. Peppercorn[5][6]
- LNER Peppercorn Class A1 60163 Tornado, a new locomotive completed in 2008, officially considered to be the 50th member of its class.[7]
- ^ "LNER Encyclopedia: The LNER A1 and A3 Gresley Pacifics".
- ^ 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.
- ^ Ian Allan ABC of British Railways Locomotives, summer 1961 edition, part 4, page 26
- ^ Boddy, Neve & Yeadon 1973, p. 174
- ^ Ian Allan ABC of British Railways Locomotives, summer 1961 edition, part 4, pp 26-27
- ^ Boddy, Neve & Yeadon 1973, p. 192
- ^ "Home". a1steam.com.