This class of submarines was designed to spend a long time underwater on patrols. The problems faced by the crew are comparable to problems facing long term spa

This class of submarines was designed to spend a long time underwater on patrols. The problems faced by the crew are comparable to problems facing long term space missions, except there was higher chance of returning to port. Because of that, Typhoons were designed with crew comfort in mind, with lots of amenities, ensuring crew performance after several months underwater.