Question: What is the name of the wide-body twin-engine jet airliner that use the design of Richard Clarkson in its development?
Sentence (from "Airbus A300"): Formally announced in 1969 and first flying in October 1972, it holds the distinction of being the world's first twin-engined widebody airliner; it was also the first product of Airbus Industrie, a consortium of European aerospace manufacturers, now a subsidiary of Airbus.
Relevant evidence: No