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) "Red October", guesses his former mentor's route and sets a course to intercept. The Soviet fleet's intentions are unknown to the U.S., although their orders are to sink "Red October". Due to the actions of an unknown saboteur, "Red October"s caterpillar drive fails during risky maneuvers through a narrow undersea canyon. Petty Officer Jones, a sonar technician aboard "Dallas", has discovered a way to detect "Red October" using underwater acoustics, and plots an intercept course. Ryan arranges a hazardous mid-ocean rendezvous to board "Dallas", where he attempts to persuade its captain, Commander Bart Mancuso, to contact Ramius and determine his