(Don’t Be A P—y). This coin is 2 inches in diameter and made of hard baked enamel. (SDV) and a Dry Deck Shelter. The normal table of organization includes three task units and a headquarters element. Each SDV Task Unit operates independently from a host submarine in the conduct of Naval Special Warfare missions. SDV Task Units typically deploy aboard host submarines, but may be deployed from shore or surface ships. SDVT-1 conducts operations throughout the Pacific. Command’s and Central. Command’s geographic areas of responsibility. A Dry Deck Shelter (DDS) is a removable module that can be attached to a submarine to allow divers easy exit and entrance while the boat is submerged. The host submarine must be specially modified to accommodate the DDS, with the appropriate mating hatch configuration, electrical connections, and piping for ventilation. Divers’ air, and draining water. The United States Navy. S DDSs are 11.6 meters (38 feet) long by 2.7 meters (9 feet) high and wide, add about 30 tons to its host submarine’s submerged displacement, can be transported by trucks or C-5 Galaxy. Aircraft, and require one to three days to install and test. They have three HY-80. Steel sections within the outer glass-reinforced plastic. (GRP) fairing: a spherical hyperbaric chamber. At the forward end to treat injured divers; a smaller spherical transfer trunk. And a cylindrical hangar with elliptical ends. (SDV), four Navy SEALs. To man the SDV, and a crew of Navy Divers. To operate the DDS and launch the SDV; or 20 SEALs with four Combat Rubber Raiding Craft. The SDV release team consists of 2 officers, 2 enlisted technicians, and 18 divers. There are currently six portable Dry Deck Shelters in use by the USN, the first one built by Electric Boat. The first, designated DDS-01S (“S” for starboard opening outer door), was completed in 1982. The remaining five, DDS-02P (“P” for port opening), -03P, -04S, -05S, and -06P, were built between 1987 and 1991 and were built by Newport News Shipbuilding. The shelters are maintained by a combined effort of Navy Divers stationed on the teams and workers of the maintenance company Oceaneering International. They have expected useful lives of about 40 years each. Never personally given any of the coins. All coins are guaranteed to be in excellent condition unless otherwise specified above. The free listing tool. The item “SEAL Delivery Vehicle Team 1 SDVT-1 DDS Platoon 1 DBAP Navy Challenge Coin” is in sale since Thursday, April 06, 2017. This item is in the category “Collectibles\Militaria\Current Militaria (2001-Now)\Original Items\Challenge Coins”. The seller is “rolyat11″ and is located in Panama City, Florida. This item can be shipped worldwide.