Midland Railway 1121 Class

4 ft 8+1⁄2 in (1,435 mm)Driver dia.4 ft 6 in (1.372 m)Wheelbase:​ • Axle spacing
(Asymmetrical)
  • 7 ft 4 in (2.235 m) +
  • 8 ft 2 in (2.489 m)
BoilerMR type A1Boiler pressure160 lbf/in2 (1.1 MPa)[1]Heating surface1,120 sq ft (104 m2)[1]CylindersTwo, insideCylinder size17 in × 24 in (432 mm × 610 mm)
Career
Operators
Power class1F
Numbers
  • MR: 1121–1130, 2248–2252, 2361–2390, 2571–2580
  • LMS: 1845–1899
  • BR: 41846–41890 (with gaps)
LocaleLondon Midland Region
WithdrawnDecember 1930 – July 1963
DispositionAll scrapped

The Midland Railway 1121 class was a class of 0-6-0T tank locomotives designed by Samuel W. Johnson for the Midland Railway. Fifty-five were built between 1895 and 1900: ten by the railway company's Derby Works, five by Sharp, Stewart and Company, and the remaining forty by Robert Stephenson and Company.

Construction history

The class were a development of the 1377 class “half cabs”. They differed by having the A1 type boiler in place of the earlier's type A. The wheelbase was stretched by 6 inches (150 mm) – all between the main and rear driving wheels. They also had a full cab.

Table of orders and numbers[2]
Original No. 1907 (& LMS) No. Manufacturer Works Nos. Qty Year Notes
1121–1130 1845–1854 Derby Works (order no. 1395) 10 1895
2248–2252 1855–1859 Sharp, Stewart & Co. 4062–4066 5 1895
2361–2390 1860–1889 R. Stephenson & Co. 2931–2960 30 1899
2571–2580 1890–1899 R. Stephenson & Co. 2961–2970 10 1899–1900

Post-Midland Railway

All 55 passed to the London, Midland and Scottish Railway (LMS) at the 1923 grouping in 1923. Withdrawals started in 1930, and by 1948, when the railways were nationalised, 23 locomotives passed into British Railways ownership, and were allocated numbers 40000 higher than their LMS numbers, although five were withdrawn before the new numbers were applied. Withdrawals continued, with the last one, 41875, taken out of service in July 1963.

None were preserved.

Table of withdrawals[2]
Year Quantity in
service at
start of year		 Quantity
withdrawn		 Locomotive numbers Notes
1930 55 6 1861/66-67/81/97/99
1931 49 4 1858/62/82/86
1932 45 10 1845/48/68/72/80/83/87-88/96/98
1933 35 4 1863/77/92/94
1934–37 31 0 –
1938 31 1 1849
1939 30 1 1851
1940–45 31 0 –
1946 29 3 1864/71/76
1947 26 3 1850/84/91
1948 23 2 1870/93
1949 21 1 1874
1950 20 2 1895, 41873
1951 18 3 1856, 41852/54
1952 15 1 41890
1953 14 2 41846/49
1954 12 1 41853
1955 11 3 41859/65/89
1956 8 1 41885
1957 7 1 41860
1958 6 0 –
1959 6 2 41857/78
1960 4 3 41847/55/79
1961–62 31 0 –
1963 1 1 41875

References

  1. ^ a b Baxter 1982, p. 118.
  2. ^ a b Baxter 1982, pp. 146–147.
  • Baxter, Bertram (1982). Baxter, David (ed.). British Locomotive Catalogue 1825–1923. Vol. 3A: Midland Railway and its constituent companies. Ashbourne, Derbyshire: Moorland Publishing Company. ISBN 9780903485524.
  • Casserley, H. C. & Johnston, Stuart W. (1974) [1966]. Locomotives at the Grouping 3: London, Midland and Scottish Railway. Shepperton, Surrey: Ian Allan. ISBN 0-7110-0554-0.