Cone of Silence was based on
David Beaty's novel
Cone of Silence (1959). Beaty was a former military and commercial pilot with
BOAC who became an expert on
human error in aviation accidents. After beginning a writing career with his first novels based on aviation themes, Beaty returned to college to acquire his degree in psychology and became a civil servant in 1967. He wrote his first nonfiction work,
The Human Factor in Aircraft Accidents, in 1969, and later wrote other works before he returned to the subject of his first nonfiction book in
The Naked Pilot: The Human Factor in Aircraft Accidents (1991). The film
Cone of Silence represented his concern that human factors were being ignored in the aviation industry. Budgetary constraints caused the use of miniatures to depict airfields and aircraft, although principal photography took place at
Filton Airport in North
Bristol with the cooperation of the
Bristol Siddeley Engines Ltd. The majority of the film was shot on the sound stages at
Shepperton Studios. as the Atlas Aviation Phoenix 1 airliner.
Aubrey Baring provided £16,060 to the budget.
Representation of the airliner in the film The film's Phoenix airliner is represented by the
Avro Ashton WB493, in use since 1955 as a testbed by the engine manufacturer
Bristol Siddeley. The real aircraft, named the Olympus-Ashton, was powered by two
Olympus turbojet podded underwing engines in addition to four
Nenes mounted in the standard wing root location. For its starring role as the Phoenix airliner, the Olympus-Ashton was painted in a special livery to represent the fictional Atlas Aviation. It is the only full-scale aircraft seen in the film. Severin released the blu-ray edition of this film in the box set Cushing Curiosities in November 2023, loaded with extras and for the first time on home video in the correct 2.35:1 aspect ratio. ==Reception==