Leaving aside fictional sumberns such as the one that appears in Twenty Thousand Leagues Under the Sea, one of the best-known literary works of the French writer Jules Verne, the largest submarine ever built was launched in 1980.
Specifically, NATO announced the launch of 941 Akula in the Russian shipyard of Severodvinsk, in the White Bar, on September 23 of that year.
Russian underwater giant
This submarine was a mastodon that measured 171.5 meters (2.5 times the length of a 747 jumbo jet) and had 20 ballistic missiles with a range of 8,300 kilometers. The ballistic missiles they carried were also difficult to handle due to their large size. They could only be transported by rails and then lifted by a powerful crane to load them in the vertical silos aboard the submarine.
Akula means “shark” in Russian.
This third-generation nuclear submarine has much more maneuverability, despite its large size and weight, and is quieter than its predecessors are. The ship’s engine consists of two OK-650 pressurized water nuclear reactors and two assembled machines that constitute a steam turbine for each reactor.
Two huge propellers 4 m in diameter and seven blades drove the submarine. Said propellers are mounted in reverse fashion from one another, so that each one rotates in the opposite direction to the other, thus achieving a greater flow and therefore more impulse.