In 1975 he was appointed Businessman of the Year for his “vision, courage and commercial discipline.” He was a fellow of both the Royal Society (1953) and the Royal Aeronautical Society, of which he was president in 1958–1959. He was knighted at the age of 39 in 1954. He received the von Baumhauer Medal of the Netherlands Association of Aeronautical Engineers for his contributions to flight safety. He also was awarded the Gold Medal of the Royal Aeronautical Society in 1962 and was elected a member of the National Academy of Engineering in 1976.
Hall was concerned about the need for improved technical education, which led to his involvement in the creation of Warwick University, serving as a pro-chancellor from 1965 to 1970. He was chancellor of the Loughborough University of Technology from 1980 to 1989.
A note in his obituary in the Guardian reads:
He appeared to have no recreations, no passions, but in fact there were two: his family and deep-sea sailing. Late in life, when he had given up sailing, Hall said it was his great good fortune to have been blessed by a family who “always put up with my eccentricities and was never too harsh when I made mistakes.” For this quiet giant who was usually right, their support was crucial.
Hall is survived by his second wife, Iola; three daughters from his first marriage; a stepdaughter and stepson from his first wife’s first marriage; and three stepsons and five stepdaughters from his second wife’s first marriage.