GCR Class 11B

The Great Central Railway Class 11B was a class of 40 4-4-0 express passenger locomotives designed by John G. Robinson and built from 1901 to 1903, later rebuilt as Class 11D, some of which lasted in service until 1950. They were a robust and substantially enlarged development of GCR Class 11 with the conventional slide valves of the time. Gorton works was busy and the engines were needed urgently, so outside builders, Sharp, Stewart and Vulcan Foundry, were used, and delivery was rapid, with 25 in service by May 1902 and all 40 by June 1904. Contemporary with the 9J goods class known as Pom-Poms, they gained the nickname Pom-Pom Bogies, and the London and North Eastern Railway classified them as D9.