Preservation
4 of the class survive in preservation
3924 - Located at the Keighley and Worth Valley Railway, operational
4027 -
Located at the Gloucestershire Warwickshire Railway, under overhaul
4123 - Located at the Avon Valley Railway, undergoing restoration
4422
- Undergoing overhaul.
5F and 8F locomotives were introduced. It was only the post-war Ivatt designs that finally removed the need for any more of
this class to be constructed.
| Numbers |
Location Built |
Year Built |
| 3835-3826 |
Derby |
1911 |
| 3837-3851 |
Derby |
1917 |
| 3852-3901 |
Derby |
1918
- 1919 |
| 3902-3936 |
Derby |
1920 - 1921 |
| 3937-3986 |
Armstrong Whitworth |
1921 -1922 |
| 3987-4026 |
Derby |
1921
-1922 |
| SDJR 57-61 |
Armstrong Whitworth |
1921 -1922 |
Midland Railway-built Locomotives
| Numbers |
Location Built |
Year Built |
| 4027-4034 |
Derby |
1924-1925 |
| 4057-4081 |
North British |
1925 |
| 4082-4106 |
Kerr,
Stuart |
1925-1926 |
| 4107-4176 |
Crewe |
1924 -1926 |
| 4177-4178 |
St Rollox |
1924 |
| 4179-4206 |
St Rollox |
1926 |
| 4207-4301 |
Derby |
1925-1927 |
| 4302-4311 |
Crewe |
1926 |
| 4312-4331 |
St
Rollox |
1927-1928 |
| 4332-4356 |
Kerr, Stuart |
1926-1927 |
| 4357-4381 |
Andrew Barclay |
1926-1927 |
| 4382-4406 |
North
British |
1926-1927 |
| 4470-4436 |
Derby |
1927 |
| 4437-4456 |
Crewe |
1927-1928 |
| 4457-4466 |
Horwich |
1928 |
| 4467-4476 |
St
Rollox |
1928 |
| 4477-4506 |
North British |
1927 |
| 4507-4556 |
Crewe |
1928 |
| 4562-4576 |
Crewe |
1937 |
| 4577-4606 |
Derby |
1939-1941 |
Note: The locomotives built for the Somerset and Dorset Railway in the above table were taken into LMS stock in 1930 and renumbered
4557-4561 (hence the gap in the table on the right).
Class 4F no. 44422 on Wansford Turntable, Nene Valley Railway, 25th April, 2010
Technical Data
Introduced : 1911
Number built : 772
Wheel arrangement : 0-6-0
Originally introduced by the Midland Railway, it says a lot that the LMS continued to produce this class of locomotive until 1941.
It was intended to be an attempt to reduce the need for the Midland Railway for double-heading their freight trains; whether or not
it was successful in this is debatable as compared to later LMS designs it wasn't all that powerful. It also suffered
the typical Midland design weaknesses in the front end design and the axlebox bearings. However they were of a robust
and simple construction and so it is perhaps not too surprising that the LMS continued with their construction, even after class