The Hunt for Red October (film) essentially revealed the use of gravimetry as a method of silent navigation in US submarines. Thought to be a billion dollar black project, the development of a full-tensor gravity gradiometer by Bell Aerospace was a classified technology at the time. It was thought to be deployed on only a few s after it was first developed in 1973. Bell Aerospace later sold the technology to Bell Geospace for oil exploration purposes. The last Typhoon-class submarine was officially laid down in 1986, under the name "TK-210", but according to sources was never finished and scrapped in 1990. The musical score of
The Hunt for Red October (film) at which point Ramius requests asylum for himself and his officers. "Red October" is suddenly attacked by "V. K. Konovalov", which has tracked them across the Atlantic. As the two Soviet subs maneuver, one of "Red October"s cooks, Loginov, an undercover KGB agent and the secret saboteur, opens fire. He fatally wounds first officer Vasily Borodin before retreating to the nuclear missile bay, pursued by Ryan and Ramius. Loginov shoots Ramius, wounding him, but Ryan kills Loginov before he can detonate a missile. Meanwhile, "Red October" makes evasive maneuvers with a diversion provided by "Dallas", causing "V. K. Konovalov" to