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Science Museum Group
© The Board of Trustees of the Science Museum

Science Museum Group
© The Board of Trustees of the Science Museum

This 4-blade propeller was made by De Havilland Airscrews, under licence from Hamilton Standard, probably for fitting to a 4,000-horsepower (3,000-kilowatt) Rolls-Royce Tyne turboprop engine. Four Tyne engines powered the Vickers Vanguard airliner and Merchantman freighter. These aircraft were in service between 1961 and 1996.