LSWR N15 class

The London and South Western Railway N15 class is a British 4-6-0 two-cylinder express passenger steam locomotive designed by Robert Urie. The class has a complex build history spanning three sub-classes and ten years of construction from 1918 to 1927. The first batch was built for the London and South Western Railway to haul heavy express trains to the south coast ports and west to Exeter. Later batches were built at Eastleigh Works and by the North British Locomotive Company in Glasgow, giving the nicknames Eastleigh Arthurs and Scotch Arthurs. In 1924 Maunsell ordered a further batch of 20 from the company, built to the Southern's composite loading gauge. One example, number 777 Sir Lamiel, is preserved in the National Collection.