L&YR Class 31
L&YR Class 31 | |||||||||||||||||||||||
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![]() No. 12928 at Normanton Locomotive Depot on 25 May 1947 | |||||||||||||||||||||||
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The L&YR Class 31 was a class of 0-8-0 steam locomotives of the Lancashire and Yorkshire Railway. The class was designed by George Hughes and introduced in 1912. The class comprised 115 new locomotives (the 1546 Class, built 1912–21) and 40 rebuilt from two other classes: the 91 Class (built 1900–08) and the 9 Class (built 1918).[2][3][4]
Superheaters
All of the locomotives were superheated. Three main types of superheater were used: the Horwich "twin plug" type, fitted to twenty locomotives of the 1546 class and eight of the 91 Class; the Robinson type, fitted to ten of the 1546 class; and the Horwich "top and bottom header" type, fitted to the remaining 117 locomotives.[3][4]
Transfer to LMS
The locomotives passed to the London, Midland and Scottish Railway (LMS) in 1923. The LMS numbered them 12840-12994 and gave them the power classification 7F.
Transfer to BR
In 1948, British Railways (BR) inherited 17 locomotives and numbered them in the range 52841–52971.[5]
Withdrawal
No examples of this class were preserved.
References

- ^ Ian Allan ABC of British Railways Locomotives, 1948 edition, part 3, page 44
- ^ Casserley, H.C. and Johnston, S.W., Locomotives at the Grouping, no.3, LMS, page 130, Ian Allan, 1966
- ^ a b Marshall, John (1972). The Lancashire & Yorkshire Railway, volume 3. Newton Abbot: David & Charles. pp. 186–8, 260–2, 266, 267–9. ISBN 0-7153-5320-9.
- ^ a b Mason, Eric (1975) [1954]. The Lancashire and Yorkshire Railway in the Twentieth Century. Shepperton: Ian Allan. pp. 147–9, 152–6. ISBN 0-7110-0656-3.
- ^ "Rail UK Steam Loco Class Information". Railuk.info. Retrieved 13 April 2012.