What is the name of the wide-body twin-engine jet airliner that use the design of Richard Clarkson in its development?
Richard Clarkson: Richard Milroy Clarkson OBE FCGI FRAeS (14 July 1904 – 7 October 1996) was a British aeronautical engineer with de Havilland, then Hawker Siddeley.
i don't know