if my enemy have subs and carry some missiles with out nuckler cap it's usless and realy waste of money and lives
let we say the enemy have sub's with out nuckler cap what can he do to you
and can his sub's pass this
SSK Attack submarines are very dangerous for any warship including Aircraft carriers..
Sweden's Super Stealth Submarines Are So Lethal They 'Sank' a U.S. Aircraft Carrier
How was the
Gotland able to evade the
Reagan’s elaborate antisubmarine defenses involving multiple ships and aircraft employing a multitude of sensors? And even more importantly, how was a relatively
cheap submarine costing around $100 million—roughly the cost of a single F-35 stealth fighter today—able to accomplish that?
However, the two-hundred-foot-long Swedish Gotland-class submarines, introduced in 1996, were the first to employ an Air Independent Propulsion (AIP) system—in this case, the Stirling engine. A Stirling engine charges the submarine’s seventy-five-kilowatt battery using
liquid oxygen.
With the Stirling, a Gotland-class submarine can remain undersea for up to two weeks sustaining an average speed of six miles per hour—or it can expend its battery power to surge up to twenty-three miles per hour. A conventional diesel engine is used for operation on the surface or while employing the snorkel. The Stirling-powered
Gotland runs more quietly than even a nuclear-powered sub, which must employ noise-producing coolant pumps in their reactors.
The Gotland class does
possess many other features that make it adept at evading detection. It mounts twenty-seven electromagnets designed to counteract its magnetic signature to Magnetic Anomaly Detectors. Its hull benefits from sonar-resistant coatings, while the tower is made of radar-absorbent materials. Machinery on the interior is coated with rubber acoustic-deadening buffers to minimize detectability by sonar. The
Gotland is also exceedingly maneuverable thanks to the combined six maneuvering surfaces on its X-shaped rudder and sail, allowing it to operate close to the sea floor and pull off tight turns.
Because the stealthy boat proved the ultimate challenge to U.S. antisubmarine ships in international exercises, the U.S. Navy leased the
Gotland and its crew for two entire years to conduct antisubmarine exercises. The results convinced the U.S. Navy its undersea sensors simply were not up to dealing with the stealthy AIP boats.
http://nationalinterest.org/blog/th...h-submarines-are-so-lethal-they-sank-us-18383