Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,797 pages of information and 247,161 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
Note: This is a sub-section of Napier
1921 By an arrangement between the Air Ministry and de Havilland, Major Frank Halford, working as a consultant, designed the 16-cylinder air-cooled Rapier, and this was followed by the 24-cylinder Dagger engine.
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