Firefox. Poster of the 1982 movie and cover of the 1977 book
VS3
Firefox
Craig Thomas, 1977
movie vs book
Clint Eastwood, 1982

A joint British-American plot is devised to steal a highly advanced Soviet fighter aircraft (MiG-31, NATO code name Firefox) which is capable of Mach 6 (hypersonic flight), is invisible to radar, and carries weapons controlled by thought. It is only through the dissidents that Gant remains one step ahead of the KGB and reaches the air base at Bilyarsk, where the Firefox prototype is under heavy guard.