LSWR L11 class

LSWR L11 Class

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LSWR L11 class

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The London and South Western Railway L11 class was a class of 4-4-0 steam locomotives designed for mixed traffic work. They were introduced in 1903 and were nicknamed "Large Hoppers". As with most other Drummond productions, the locomotive had two inside cylinders and Stephenson link valve gear.


The L11 class was one of a number of designs by Dugald Drummond incorporating a large proportion of standard parts that could be interchanged with other classes of locomotive. The boiler was interchangeable with the T9 class, and likewise was equipped with water tubes fitted across the firebox combustion space, with the aim of increasing heating surface whilst facilitating water circulation; this device however also increased maintenance costs and was soon removed by Drummond's successor, Robert Urie.

Later history

The L11 class was never equipped with a superheater as was applied to other Drummond types. The class was coupled to a six-wheeled tender as standard, although from time to time they had the Drummond eight-wheeled 'watercart' by way of tender interchange.

Eight locomotives were converted to oil firing as part of government trials in 1947 to 1948.

None has survived to be preserved.

Livery and numbering

LSWR and Southern

Under the LSWR, the L11s were outshopped in the LSWR Passenger Sage Green livery with purple-brown edging, creating panels of green. This was further lined in white and black with 'LSWR' in gilt on...
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