The Hunt for Red October vessel. It is equipped with a cutting-edge silent propulsion system, known as the caterpillar drive, that makes audio detection by passive sonar extremely difficult and enables the submarine to sneak its way into American offshore waters and launch nuclear missiles with little or no warning. As the ship leaves the shipyard at Polyarny, Ramius kills Ivan Putin, his political officer, to ensure that he will not interfere with the defection. Initially, Ramius was instructed to conduct military exercises with Soviet attack submarine "V. K. Konovalov", commanded by his former student Viktor Tupolev, for the purpose of testing the effectiveness of
The Hunt for Red October deduces Ramius's plans. The U.S. military reluctantly agrees, while planning for contingencies in case the Soviet fleet has intentions other than those inferred. After it is revealed that Ramius has informed Moscow of his plan for him and his officers to defect, Ryan becomes responsible for shepherding Ramius and his vessel away from the pursuing Soviet fleet, and meets with an old Royal Navy acquaintance, Admiral John White, commanding a task force from the aircraft carrier . In order to convince the Soviets that "Red October" has been destroyed, the U.S. Navy rescues her crew after Ramius fakes a reactor