The Hunt for Red October the caterpillar drive. Instead, he plots on a new course for the North American coast, falsely informing the crew that they will be proceeding all the way to Cuba undetected. Before sailing, Ramius had sent a letter to Admiral Yuri Padorin, the uncle of his deceased wife, Natalia, brazenly stating his intention to defect; the Soviet Northern Fleet therefore sails out to sink "Red October" under the pretext of a search and rescue mission. "Red October" passes near , a under the command of Bart Mancuso, which is patrolling the entrance of a route used by Soviet submarines 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