A MERLIN IS MADE: THE PRODUCTION OF MERLIN ENGINES AT A ROLLS ROYCE FACTORY, 1942 - Scientists at work in the laboratory at this aircraft engine factory. Chemical analysis is used to confirm materials testing and investigations are also carried out into electro-plating, pickling, etching and the development of oils and coolants. In addition, the development of rubber substitutes is being examined, in conjunction with rubber companies. ,

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