sources:
http://www.spiegel.de/wissenschaft/mensch/0,1518,609897,00.html
http://online.wsj.com/article/SB123543023154353525.htmlAnybody want some top-secret seagoing vessels? The Navy has a pair it doesn't need anymore. It has been trying to give them away since 2006, and they're headed for the scrap yard if somebody doesn't speak up soon.
One is called Sea Shadow. It's big, black and looks like a cross between a Stealth fighter and a Batmobile. It was made to escape detection on the open sea. The other is known as the Hughes (as in Howard Hughes) Mining Barge. It looks like a floating field house, with an arching roof and a door that is 76 feet wide and 72 feet high. Sea Shadow berths inside the barge, which keeps it safely hidden from spy satellites.
The barge, by the way, is the only fully submersible dry dock ever built, making it very handy -- as it was 35 years ago -- for trying to raise a sunken nuclear-armed Soviet submarine. ... read more? follow the links
info:
http://en.wikipedia.org/wiki/Sea_Shadow_%28IX-529%29Sea Shadow is a test craft developed under a combined program by the Advanced Research Projects Agency (ARPA), the Navy, and Lockheed Martin Missiles and Space Company. The Sea Shadow program was begun in the mid-1980s. Its purpose is to explore a variety of new technologies for surface ships, including ship control, structures, automation for reduced manning, seakeeping and signature control. In 1993-1994, the craft was revealed to the public and underwent daylight testing. Since 1994, Sea Shadow has been maintained in a lay-up status and is currently homeported at Naval Station San Diego. In anticipation of conducting future ship research and development testing, the U.S. Navy reactivated the Sea Shadow craft in early 1999. Sea Shadow will support risk reduction for future surface ship platforms such as DD 21, the Navy's 21st Century Land Attack Destroyer. The platform will allow the Navy to explore and test, in a realistic at-sea environment, important DD 21 advanced information and automation technologies that support reduced manning and ship survivability.
Builder Lockheed Martin
Power Plant Diesel electric
Length 164 feet (49.99 meters)
Beam 68 feet (20.73 meters)
Draft 14.5 feet (4.42 meters)
Displacement 560 tons (568.99 metric tons) full load
Speed 10 knots ( mph)
Crew 10