 the british rail class 11 was applied to a batch of diesel shunting locomotives built from april 1945 to december 1952, based on a similar earlier batch built by the london, midland and scottish railway (lms) between 1939 and 1942. == overview == ===numbering=== the fourteen locomotives were built for the war department, with the first ten subsequently going the nederlandse spoorwegen as ns 501â510. lms numbers 7120â7129 went straight into lms stock, with 7129 being the last diesel shunter to be built for the lms. british railways continued to build the class from 1948 to 1952, using numbers m7130âm7131 and 12045â12138. 7120â7129 and m7130âm7131 became br numbers 12033â12044. the whole class of 12033â12138 became class 11. locomotives up to 12102 were built at lms/br derby and 12103â12138 at br darlington. ===export locomotives===  close to 100 almost identical machines were built by english electric and supplied to nederlandse spoorwegen (ns) as their 500 class &
British_Rail_diesel_locomotives C_locomotives English_Electric_locomotives Railway_locomotives_introduced_in_1945 Standard_gauge_railway_locomotives