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) unreleased end titles. "The Hunt for Red October" opened in 1,225 theaters on March 2, 1990, grossing $17 million on its opening weekend, more than half its budget. The film opened at number one at the U.S. box office and remained there for three weeks. Its opening was the 20th biggest weekend of all time and the biggest non-summer, non-Thanksgiving weekend to date. The film went on to gross $122,012,643 in North America with a worldwide total of $200,512,643. , the film held an 88% rating at the review aggregator website Rotten Tomatoes, based on 69 critics. At Metacritic, which