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. The hangar can support a Swimmer Delivery Vehicle (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 (CRRC). The SDV release team consists of 2 officers, 2 enlisted technicians, and 18 divers.
The two SEAL Delivery Vehicle Teams report to Naval Special Warfare Group THREE.
There are currently six portable Dry Deck Shelters in use by the USN, the first one built by the 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. They have expected useful lives of about 40 years each.
Read more about Dry Deck Shelter: DDS-Capable Submarines
Famous quotes containing the words dry, deck and/or shelter:
“I can love both fair and brown;
Her whom abundance melts, and her whom want betrays;
Her who loves loneness best, and her who masks and plays;
Her whom the country formed, and whom the town;
Her who believes, and her who tries;
Her who still weeps with spongy eyes;
And her who is dry cork, and never cries.
I can love her, and her, and you and you,
I can love any, so she be not true.”
—John Donne (1572–1631)
“And deck the bananas in leaves
Plucked from the Carib trees,
Fibrous and dangling down,
Oozing cantankerous gum
Out of their purple maws....”
—Wallace Stevens (1879–1955)
“We shelter children for a time; we live side by side with men; and that is all. We owe them nothing, and are owed nothing. I think we owe our friends more, especially our female friends.”
—Fay Weldon (b. 1933)