The Great Central Railway Class 1A, classified B8 by the LNER, was a class of 4-6-0 mixed-traffic locomotives designed by John G. Robinson for fast goods, relief passenger and excursion services. They were known as the ‘Glenalmond Class’ and were a smaller wheeled version of Robinson's earlier Sir Sam Fay express passenger class (LNER Class B2), which they closely resembled.