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British Railway Steam Locomotive

Please read this statement on the accuracy of the data shown below

Note: To Obtain Consistency in the Steam System, Shed Codes used are those Registered at Nationalisation on 1st January 1948
2nd Grouping Number
1st Grouping Numbersr 7
2nd Pre Grouping Number
1st Pre Grouping Numberlsw 7
Works/Lot Number 420
Class CodeT-1
DesignerAdams W
BuilderNine Elms (LSWR)
1948 Shed72D Plymouth Friary
Last Shed72D Plymouth Friary
Disposal detailsEastleigh Works (B.R.)
DisposalCut Up
Disposal Date30/06/1951
NotesOriginally withdrawn Feb 1939 then reinstated Oct 1939

Class Information

The London and South Western Railway T1 class was a class of fifty 0-4-4T steam tank locomotives designed for suburban passenger work, designed by William Adams and built between 18881896. Adams London & South Western Railway design originally classified Class F6 but later included in the T1 Class.

Adams' T1 class of 0-4-4T locomotive was introduced in June 1888 and was, to all intents and purposes, a tank engine version of the A12 class 0-4-2 engines of the previous year. Twenty were built between 1888 and 1890 and numbered from 61 to 80. A second batch of engines was built between 1894 and 1895 that were basically the same though with the steam chest between the cylinders, as opposed to beneath on the first twenty, and weighing in more than two tons heavier. This second batch, of thirty engines, was officially classified as the F6 class and numbered from 1 to 20, then 358 to 367. This last ten were finished under Drummond's supervision and appeared with his number plates, Adam's chimneys and no brass beading.

The classes were built principally to haul London suburban services but were also to be found on all parts of the LSWR, and at Ludgate Hill, though they were not that common in the West of England. Two of the class, when new, were put to work on the Sidmouth branch whilst others were shedded at Plymouth, Fratton, Andover, Bournemouth and Salisbury as well as those in London.

All the T1s had been withdrawn by 1936 but F6s fared a little better with several lasting into British Railways' ownership. Drummond chimneys appeared on many of the engines, though not all had been replaced by the time the Southern Railway inherited the classes. A few received Drummond boilers during their later lives: N11 in 1935, N15 in 1939, N63 in 1926 and N361 in 1941. However, the same boiler was used on at least three of these engines and it is possible that only one boiler was involved. The boiler from N63 was transferred to N11 and later to N15 upon scrapping of the engines and it is possible that this same boiler was used for N361.

The class were numbered 120, 6180 and 358367. In typical London and South Western Railway fashion, they reused the numbers of retired or duplicated engines. The class remained largely intact until the 1930s, being scheduled to be withdrawn by 1940, however due the Second World War a few remained in traffic (around eight examples) until the early British Railways years, the final one (30007) being withdrawn in May 1951.

Order Year Qty LSWR Nos.
T1 1888 10 6170
D2 1889 10 7180
F6 1894 10 110
S6 1895 10 1120
A7 1896 10 358367

No complete T1 locomotives were saved for preservation, however a boiler from a withdrawn locomotive was found in a factory in Essex and was subsequently purchased for use on a 'new' T1 locomotive. Since September 2004, this boiler has been stored on the Avon Valley Railway and can be seen on that railway's website under Rolling Stock, then Locomotives.

The first three withdrawals sr67, sr68 and sr69 were made by the Southern Railway in October 1931.
The first BR withdrawal was 30010 in April 1948 from Salisbury shed.
The last three locos withdrawn were 30020, 30367 and 30007 in June 1951 from Fratton, Eastleigh and Plymouth Friary sheds respectively.

Technical Details

Designer : William Adams
Builder : LSWR Nine Elms Locomotive Works
Introduced : 1888
Build date : 18881896
Total produced : 50 - - Total to BR 14
Configuration : 0-4-4T
UIC classification : B2'nt
Gauge : 4 ft 8 in (1,435 mm)
Driver wheel diameter : 5 ft 7 in (1.702 m)
Trailing wheel diameter : 3 ft 0 in (0.914 m)
Wheelbase : 23 ft 0 in (7.01 m)
Length : 35 ft 1 in (10.71 m)
Axle load : 18.50 long tons (18.80 t)
Weight on drivers : 35.95 long tons (36.53 t)
Locomotive weight : 57 tons 2 cwt
Fuel type ; Coal
Fuel capacity : 2.00 long tons (2.03 t)
Water capacity : 1,200 imperial gallons (5,500 l; 1,400 US gal)
Boiler pressure : 160 lb sq in (1.10 MPa)
Cylinders : Two (inside)
Cylinder size : 18 in 26 in (457 mm 660 mm)
Valve Gear : Stephenson (slide valves)
Tractive effort : 17,099 lbf (76.1 kN)
Career : LSWR, SR, BR
Class : T1
Power class LSWR/SR: K, BR: 1P
Withdrawn ; 19311951
Disposition : All but a single boiler scrapped

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