"Mother" And "Son" -- The Avro 698 Delta-wing bomber and the Avro 707, from which the larger aircraft was developed, seen in flight over Farnborough today. A "Mother" and "Son" were seen flying together today at the Farnborough air display organized by the society of British Aircraft Constructors. They were the Avro 698 delta-wing bomber and the small Avro 707 from which the 698 was developed. September 4, 1952. (Photo by Paul Popper Ltd.).;"Mother" And "Son" -- The Avro 698 Delta-w