To combat the threat of the Soviet’s Akula class, the U.S. Navy responded with the Seawolf class of nuclear attack submarines. The Seawolf submarines were designed with HY-100 steel alloy hulls two inches thick , the better to withstand the pressures of deep diving. HY-100 steel is roughly 20 percent stronger than the HY-80 used in the Los Angeles class. As a result, the submarines are capable of diving to depths of up to two thousand feet, and crush depth estimates run from 2,400 to 3,000 feet.
he extreme quietness of the Seawolf class gave the Navy the idea of modifying the last submarine, USS Jimmy Carter, to support clandestine operations. An extra one hundred feet was added to the hull, a section known as the Multi-Mission Platform (MMP). The MMP gives Carter the ability to send and recover Remotely Operated Vehicles/Unmanned Underwater Vehicles and SEALs and diving teams while submerged. It includes berthing for up to fifty SEALs or other attached personnel. Carter also features auxiliary maneuvering devices fore and aft for precise maneuvering in situations such as undersea cable tapping and other acts of espionage.Continue reading