Abstract
Unlike the submarine, the surface ship remains permanently exposed on the surface of the sea. This makes special, and extremely stringent, demands on the vessel’s stealth properties. In the design of new warships, increasing attention is being paid to signature reduction although; the outcome usually represents a combination of stealth technology and traditional ship design. No warship builder has taken the possibilities of stealth technology as far as Kockums who, with the Visby Class corvette, have produced the world’s only full stealth corvette. Undersea Warfare technology, including modern stealthy submarines and minisubmarines, air-independent propulsion, and advanced submarine combat systems with associated weaponry (torpedoes, mines, submerged-launch missiles), is being transferred among the nations of the world