The aircraft on which this movie is set is a Tupolev Tu-104. This was a Soviet Russian-made passenger jet, code-named "Camel" by N.A.T.O. In this movie, the airline, on which the passengers fly, is a British one running a London to New York City service. However, it does seem highly unusual that they are operating this service with a Soviet-made Jet aircraft, especially since this movie was made during the height of the Cold War. In this movie, when the jet takes off, its Aeroflot markings and Soviet flag are easily visible. The Tu-104 was only operated by the U.S.S.R. and other Communist-affiliated countries, and the aircraft would not have been able to run a full passenger London to New York City service without a stopover (as occurs in the movie). Why the producers chose this aircraft and not the British-made Comet 4 or Boeing 707 (both aircraft had the range to cross the Atlantic) is a mystery.
This movie was made under the slightly different title, "Jetstream" (some reports printing this as two words). It was altered to "Jet Storm" at the last minute. The song sung over the opening credits, however, is still called "Jetstream". No reason has ever been given for the change.
Regarding the change of title from Jetstream to Jet Storm, at the time that this was made TWA was still running transatlantic services with its Lockheed L.1649A Starliners (the ultimate Constellation). They marketed this piston engined aircraft as Jetstream, which was painted on the aircraft. Maybe TWA objected to the title.
First credited movie role of Paul Eddington (Victor Tracer).
Early in the film, Stanley Baker has a conversation with one of his officers about having Zulu chiefs on a flight. A few years later, he would produce and play the lead in probably his biggest film role, as Lieutenant Chard in Zulu (1964), directed by this picture's Cy Endfield.