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The wet vehicle SDV program (officially named the Swimmer Delivery Vehicle, later re-designated the SEAL Delivery Vehicle after the Swimmer Delivery Vehicle Teams were renamed SEAL Delivery Vehicle Teams) currently centers on the Mark VIII Mod 1. The SDV was first developed in 1975 for use among UDT/SEAL teams.
The wet vehicle SDV program (officially named the Swimmer Delivery Vehicle, sometimes erroneously designated as the SEAL Delivery Vehicle after the Swimmer Delivery Vehicle Teams were renamed SEAL Delivery Vehicle Teams) currently centers on the MK VIII MOD 1, was first established in 1975 for use among UDT/SEAL teams.
The Shallow Water Combat Submersible (SWCS), also known as the Mark 11 SEAL Delivery Vehicle (SDV Mk 11), is a crewed, wet (free-flooding) submersible that serves as a swimmer delivery vehicle for special-operations missions by United States Navy SEALs. Designed to replace the Mark 8 SEAL Delivery Vehicle (SDV Mk 8) on a 1-to-1 basis, Teledyne ...
ASDS was conceived to address the need for stealthy long-range insertion of special operations forces on covert or clandestine missions. It was designed to replace the wet SEAL Delivery Vehicle (SDV), which exposed combat swimmers to long, cold waits during transit that impeded combat readiness on arrival, limited operational range, and hindered underwater navigational capability.
In absolute terms the vehicle was very large: at 10 ft 3 in (3.12 m) tall the Mark VIII was the second largest operational tank in history, after the Char 2C. However its weight was only 38.3 long tons (38.9 t) [ 4 ] fitted for battle as the armour plate was thin with a thickness of 16 mm on the front and sides—a slight improvement over the ...
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Some submarines in the class are capable of delivering Navy SEALs through either a SEAL Delivery Vehicle deployed from the Dry Deck Shelter or the Advanced SEAL Delivery System mounted on the dorsal side, although the latter was cancelled in 2006 and removed from service in 2009. [28]
Lockheed Martin claims that the DCS has an endurance greater than 24 hours, triple that of the current SEAL Delivery Vehicle and twice that of the Shallow Water Combat Submersible the DCS will serve alongside. [5] Unlike its predecessor, the Dry Combat Submersible will be deployed from surface ships rather than from larger submarines. [1]