LNER Class A1
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 the famous 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 [7]
Comparison table
The following table lists dimensions of the locomotives:
| Dimension | Gresley A1 | Thompson A1/1 | Peppercorn A1 | Tornado |
|---|---|---|---|---|
| Driver size | 6' 8" | 6' 8" | 6' 8" | 6' 8" |
| Locomotive weight (long tons) | 91.35 | 101.0 | 104.1 | 105.2 |
| Tender weight (long tons) | 57.90 | 60.35 | 60.35 | 60.90 |
| Coal capacity (long tons) | 8.00 | 9.00 | 9.00 | 7.50 |
| Water capacity (imperial gallons) | 5,000 | 5,000 | 5,000 | 6,000 |
| Boiler pressure (psi) | 180 | 250 | 250 | 250 |
| Cylinders (3) | 20" x 26" | 19" x 26" | 19" x 26" | 19" x 26" |
| Tractive effort (lbf at 85% pressure) | 29,835 | 37,397 | 37,397 | 37,397 |
See also
References
- ↑ http://www.lner.info/locos/A/a1a3a10.shtml
- ↑ 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
- ↑ http://www.a1steam.com/
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