| Power Classification | 0F |
| Introduced | 1891 – 1910 |
| Designer | Aspinall |
| Company | L&YR |
| Weight | 21t 5cwt |
| Driving Wheels | 3ft 3⅜ins |
| Boiler Pressure | 160psi |
| Cylinders | Outside – 13in x 18in |
| Tractive Effort | 11,335lbf |
| Valve Gear | Stephenson (slide valves) |
This class of engine was based on a small class of three engines built by the Vulcan Foundry for the railway in 1886. These three were numbered 916-918 by the L&YR and one later became 11200 with the LMS although the number was never applied at it was withdrawn from service in 1925. The other two were withdrawn from service in 1910.
Aspinall built fifty-seven of these small saddle tanks for the L&YR in batches between 1891 and 1910. The wheelbase of these were shortened to 5 ft 9 in, the tank was extended over the smokebox, the cab was enlarged, and the boiler pressure raised to 160psi. Seventeen of this modified design were ordered from Horwich Works in three batches; Aspinall’s successor Hoy order another batch of 10; and Hoy’s successor Hughes ordered 30 more in two batches.
They were known as Pugs and were allocated by the L&YR for operation in the industrial areas and docks of Fleetwood, Goole, Liverpool and Salford. In later times they became more widely dispersed, reaching places such as Bristol, Bangor, Crewe, Derby, Widnes, York and Swansea. When the LMS was merged into British Railways on 1 January 1948, 23 Pugs’ remained in service.
The engines had outside cylinders, but they were fitted with inside Stephenson valve gear. No coal bunkers were fitted, the coal being carried inside the cab side sheets. They had disc wheels, covered in slide bars, and were fitted with dumb buffers (wooden Buffers).
Some engines of this class were based in Liverpool docks and they were fitted with simple spark arrestors.
In addition to 51218 which has been preserved, L&Y No 19 (LMS 11243 which was sold out of service in 1931) has also been preserved.
51204 retained a low cab roof and a cut down chimney which were fitted when it worked at Maryport in 1929.
Number in Service.
| Built | Withdrawals | No. in Service | ||
| LMS/BR Numbers | Quantity | |||
| 1891 | 11201-11206 |
6 |
6 |
|
| 1893-94 | 11207-11212 |
6 |
12 |
|
| 1895 | 11213-11217 |
5 |
17 |
|
| 1901 | 11218-11227 |
10 |
27 |
|
| 1905-6 | 11228-11237 |
10 |
37 |
|
| 1910 | 11238-11257 |
20 |
57 |
|
| 1911-23 |
57 |
|||
| 1924 |
1 |
56 |
||
| 1925 |
56 |
|||
| 1926 |
2 |
54 |
||
| 1927-29 |
54 |
|||
| 1930 |
4 |
50 |
||
| 1931 |
10 |
40 |
||
| 1932 |
4 |
36 |
||
| 1933 |
3 |
33 |
||
| 1934 |
5 |
28 |
||
| 1935 |
2 |
26 |
||
| 1936 |
1 |
25 |
||
| 1937 |
1 |
24 |
||
| 1938 |
1 |
23 |
||
| 1939-55 |
23 |
|||
| 1956 |
1 |
22 |
||
| 1957 |
3 |
19 |
||
| 1958 |
3 |
16 |
||
| 1959 |
1 |
15 |
||
| 1960 |
2 |
13 |
||
| 1961 |
3 |
10 |
||
| 1962 |
6 |
4 |
||
| 1963 |
3 |
1 |
||
| 1964 | 51218 |
1 |
0 |
|
- 11243 was sold to John Mowlem & Co. Bassett in 1931, then to United Glass Bottle Manufacturers at Charlton. It was subsequently preserved.
- 11225 and 11255 were sold to J. F. Wake & Co, Darlington in 1932 and 1934. 11255 was subsequently owned by the Royal Ordance Factorey at Chorley.
- 11245 in service stock since 1931, sold to Penmeanmawr & Welsh Granite Co in North Wales in 1933. It was later sold to Fison’s Ltd at Widnes.
- 11224 sold to A. R. Adams & Co at Newport (Mons) in 1934. It later went to ICI West Bank Power Station at Widnes.
- 11249 sold to Cooke & Nuttall Ltd at Horwich in 1936.
- 11257 sold to Holloway Brothers of Westmininister in 1937 but later moved to Holloway Bros. at Nottingham.
- 11256 was sold to Turner’s Paper Mill at Goole in 1934.
- 11251 was sold to R. Frazer & Co., Hebburn-on-Tyne in 1933 and subsequently to North Wales Granite Co., Conway.
Allocation of locomotives in service as at 1st of January
|
1948 |
1955 | 1958 | 1961 | 1962 |
1963 |
|
| Agecroft |
2 |
2 | 2 | 4 | 4 |
2 |
| Bangor |
1 |
|||||
| Bank Hall |
9 |
10 | 8 | 3 |
2 |
|
| Burton |
2 |
|||||
| Bristol Barrow Road |
1 |
2 | 2 | 2 |
1 |
|
| Crewe South |
1 |
3 |
1 |
|||
| Derby |
2 |
|||||
| Goole |
3 |
4 | 3 | 3 |
3 |
|
| Newton Heath |
2 |
|||||
| Preston |
1 |
1 |
||||
| Radstock |
1 |
|||||
| Sutton Oak |
1 |
|||||
| Swansea East Dock |
1 |
|||||
| Widnes |
1 |
|||||
| York |
1 |
|||||
|
23 |
23 | 19 | 13 | 10 |
3 |
- The locomotives allocated to Bank Hall in Liverpool were used on the mainy lines in the dock area. They were replaced by BR class 2 170hp Yorkshire Engine Co. diesel shunters which were deployed from 1960 onwards. One of these D2860 is now preserved and is used at the National Railway Museum at York to move exhibits.
Accidents and Incidents
On 5 July 1963, one of the driving wheels of locomotive 51232 sheared off at Salford.
Preservation
Both of the preserved members of this class are owned by the Lancashire & Yorkshire Railway Trust. The Lancashire & Yorkshire Railway Trust was established in 1988 by the Lancashire & Yorkshire Railway Preservation Society and in 1991 became a Registered Charity (registration number 1002627 in England). The Trust owns a unique collection of steam locomotives and carriages previously owned by the Lancashire & Yorkshire Railway.
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