Red October (fictional submarine) Ramius but the commander of "Dallas" conceals the defection from the rest of the Soviet crew, who are repatriate in due course. The submarine is reverse engineered by the U.S. Navy to discern its secrets. Sometime between a year and eighteen months later the hull of the sub is sunk in a deep ocean trench, although previously the submarine USS "Ethan Allen" had been scuttled in order to deceive Soviet officials that "Red October" had been sunk. The technology then seems to disappear, although there are later references in some other books, including "The Sum of All Fears". In "The
The Hunt for Red October are many deviations, including "Red October" traveling up the Penobscot River in Maine to dry dock, and the "caterpillar drive" being described as a magnetohydrodynamic drive system, essentially, "a jet engine for the water". The film received mainly positive reviews from critics, holding an 87% rating from Rotten Tomatoes based on 66 reviews. It was the 6th top-grossing film of the year, generating $122 million in North America and more than $200 million worldwide in box office. In a 1991 interview, Clancy remarked of the film's success: "It was reasonably true to the spirit of the book, although the movie