lswr-b4

The LSWR Adams B4 Class was a series of 25 small 0-4-0T dock shunting tank locomotives designed by William Adams and built at Nine Elms Works between 1891 and 1893 for the London and South Western Railway's dock shunting duties at Southampton Docks, where the restricted curves, confined spaces, and sharp dock approaches demanded a very compact four-coupled tank locomotive that could negotiate the tightest dock layouts while providing enough power to move the heavy passenger and cargo vans that formed the dock traffic. The B4 class became the standard Southampton Docks shunter for several decades and gave long and reliable service in the demanding dock environment.

Southampton Docks was one of the premier British passenger liner terminals, handling the great Atlantic and Empire liners of the White Star, Cunard, and Union-Castle lines. The B4 tanks that shunted the dock lines were a vital, unglamorous part of the great liner trade — marshalling the boat trains that brought passengers from Waterloo to the quayside, handling luggage vans and mail coaches, and keeping the dock approach lines clear for the intensive liner sailings. Two examples are preserved: No. 30102 Granville and No. 96 Normandy.