Merlin 45 aeroplane engine, made by Rolls-Royce Ltd, Crewe, c.1940. 12 cylinder arrangement with the lower dual ignition sectioned for demonstration purposes and fitted with electric motor to turn it ...

In the 1930s, Rolls-Royce had developed one of the finest pieces of engineering ever conceived: the Merlin engine. Planners knew they had something special in the supercharged V-12 engine ...