As a submarine of the Typhoon class, it carries many ballistic missiles armed with nuclear warheads. The drama of the story partially centers around the dual capabilities of this submarine. In the film (of same name) however, it is shown as being a magnetohydrodynamic drive. The inspiration of this post, comes from a novel published in 1984 (which I read just few years ago) – Tom Clancy’s The Hunt for Red October Red October – a fictitious modified Typhoon class submarine in the Tom Clancy novel who was built with a revolutionary stealth propulsion system called a “caterpillar drive”, which is described as a hydrojet system in the book. The account of the attack on HMS Redmill and her evasion of her hunters following the attack is worth reading. Another U-boat whcih was also coated with Alberich was 'The Black Panther' - U-1105.