The

London and North Eastern Railway The London and North Eastern Railway (LNER) was the second largest (after LMS) of the " Big Four" railway companies created by the Railways Act 1921 in Britain. It operated from 1 January 1923 until nationalisation on 1 January 1948. At th ...

(LNER) Thompson Class O1 was a class of

2-8-0 Under the Whyte notation for the classification of steam locomotives, represents the wheel arrangement of two leading wheels on one axle, usually in a leading truck, eight powered and coupled driving wheels on four axles, and no trailing wheels. ...

steam locomotive A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, oil or, rarely, wood) to heat water in the locomot ...

Construction

Because of wartime restrictions on new-build locomotives, they were rebuilds of LNER Class O4 "ROD"

s built before and during World War I, although most of the locomotive was replaced during this rebuild. The first LNER rebuild took place in February 1944, at Gorton Works and a total of 58 locomotives were rebuilt to class O1 in total, with the last being locomotive 63856 in October 1949 during the early British Railways era, after which the programme was halted. The main modification to the original GCR Robinson Class 8K 2-8-0 design was the incorporation of a standard LNER 100A boiler, Walschaerts valve gear and new cylinders. The locomotives kept the same numbers those being locomotives 3571, 3578-3579, 3589, 3592, 3596, 3596, 3610, 3619, 3630, 3646, 3650, 3652, 3663, 3670, 3676, 3678, 3687, 3689, 3711-3712, 3725, 3740, 3746, 3752, 3755, 3760, 3768, 3773, 3777, 3780, 3784, 3786, 3789, 3792, 3795-3796, 3803, 3806, 3808, 3817, 3838, 3854, 3856, 3863, 3865, 3867-3869, 3872, 3874, 3879, 3886-3887, 3890 and 3901.

British Railways

The locomotives passed to

British Railways British Railways (BR), which from 1965 traded as British Rail, was a state-owned company that operated most of the overground rail transport in Great Britain from 1948 to 1997. It was formed from the nationalisation of the Big Four British rai ...

(BR) Eastern and North Eastern Regions on 1 January 1948 and were given BR running numbers in the range 63570-63920. However, this range included many unrebuilt O4s.

Preservation

None of the Thompson O1s have been secured for preservation.

Models

Hornby make models of the O1s in OO gauge. 63760 LNER Class O1 2-8-0 locomotive

References

External links

The Thompson O1 2-8-0 Locomotives
''LNER encyclopedia''
Class O1 Details
at ''Rail UK'' {{LNER Locomotives O1 Thompson 2-8-0 locomotives Railway locomotives introduced in 1944 Scrapped locomotives Standard gauge steam locomotives of Great Britain 1′D h2 locomotives Freight locomotives