The Story of when Ford UK Refused to Build Rolls Royce Merlin Engines because the Tolerances Rolls Royce allowed were Looser than Ford was Willing to Work With – The Aviation Geek Club
Ford re-drew the blue-prints for the Merlin, making it more suitable for mass production, and by 1944, over 400 engines a week were flowing out of the plants. The Rolls Royce Merlin is a direct descendant of the Kestrel engine, the power unit from the Hawker Hart and its many variants; an enlarged version of …