Swimmer Delivery Vehicle (SDV): Submarines have operated with special operations teams since the days of WWII with Underwater Demolition Teams (UDT), commonly known as "SEALs" (Sea-Air-Land) are used in a variety of clandestine operations. Carried in a special watertight tank "piggybacked" to a submarine, the SDV gives the SEAL team a greater range of stealth, mobility and endurance.
During World War II, the Italian "Maiale" was used to transport frogmen into a harbor or anchorage occupied by enemy ships. When close to an intended target, the frogmen would exit the Maiale, place a mine on the ship's hull, set a timer, return to their mini-sub, and move away from the target, clear of the explosion. Maiale class submarines were used with great effectiveness against British ships anchored in Gibraltar.
Italian 'Maiale' and American 'SDV' Swimmer Delivery Vehicles
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By kjfitz @ 2008-05-19 17:41:40