The Akula (Shark) class nuclear submarine is a unique vessel. These submarines (of Project 941, or ‘Typhoon,’ according to NATO classification) are considered the largest in the world, with a length of 124 meters and the height of a nine-floor building.
The first Akula sub was developed at the Sevmash plant in 1976, and its launch was on Sept. 23, 1980. In total, from 1981 to 1989, six Akula submarines were launched and put into operation, and all have found a place in the Guinness Book of World Records.
The vessel’s massive size was necessary so it could be equipped with non-standard sized ballistic missiles, which normal submarines couldn’t carry.
The Russian fleet today has three of the six Akula subs originally built: the TK-17 Arkhangelsk, the TK-20 Severstal and the TK-208 Dmitry Donskoi, which, after upgrades between 1996 and 2002, is the most modern version of the Akula.