About: IX-350 Dutchmen (FGC)

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About: IX-350 Dutchmen (FGC) Sponge Permalink

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Sea Shadow was built in 1985 and used in secret but normal service until her public debut in 1993, to examine the application of stealth technology on naval vessels. In addition, the ship was designed to test the use of automation to enable the reduction of crew size. The ship was created by the Defense Advanced Research Projects Agency (DARPA), the U.S. Navy and Lockheed. Sea Shadow was developed at Lockheed's Redwood City, California facility, inside the Hughes Mining Barge, which functioned as a floating drydock during construction and testing. She is sometimes referred to as "USS Sea Shadow"; however, this designation is inappropriate as she was never a fully commissioned ship of the U.S. Navy.

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rdfs:label	IX-350 Dutchmen (FGC)
rdfs:comment	Sea Shadow was built in 1985 and used in secret but normal service until her public debut in 1993, to examine the application of stealth technology on naval vessels. In addition, the ship was designed to test the use of automation to enable the reduction of crew size. The ship was created by the Defense Advanced Research Projects Agency (DARPA), the U.S. Navy and Lockheed. Sea Shadow was developed at Lockheed's Redwood City, California facility, inside the Hughes Mining Barge, which functioned as a floating drydock during construction and testing. She is sometimes referred to as "USS Sea Shadow"; however, this designation is inappropriate as she was never a fully commissioned ship of the U.S. Navy.
dcterms:subject	Technology Vehicles Franco-German Commonwealth
abstract	Sea Shadow was built in 1985 and used in secret but normal service until her public debut in 1993, to examine the application of stealth technology on naval vessels. In addition, the ship was designed to test the use of automation to enable the reduction of crew size. The ship was created by the Defense Advanced Research Projects Agency (DARPA), the U.S. Navy and Lockheed. Sea Shadow was developed at Lockheed's Redwood City, California facility, inside the Hughes Mining Barge, which functioned as a floating drydock during construction and testing. She is sometimes referred to as "USS Sea Shadow"; however, this designation is inappropriate as she was never a fully commissioned ship of the U.S. Navy. Sea Shadow has a SWATH hull design. Below the water are submerged twin hulls, each with a propeller, aft stabilizer, and inboard hydrofoil. The portion of the ship above water is connected to the hulls via the two angled struts. The SWATH design helps the ship remain stable even in very rough water of up to sea state 6 (wave height of 18 feet (5.5 m) or "very rough" sea). The shape of the superstructure has sometimes been compared to the casemate of the ironclad ram CSS Virginia of the American Civil War. The T-AGOS 19-and-23-class oceanographic ships have inherited the stabilizer and canard method to help perform their stability-sensitive surveillance missions. Sea Shadow has only 12 bunks aboard, one small microwave oven, a refrigerator and table. It was never intended to be mission capable and was never commissioned, although she is listed in the Naval Vessel Register. Sea Shadow was revealed to the public in 1993, and was housed at the San Diego Naval Station until September 2006, when it was relocated with the HMB-1 to the Suisun Bay Reserve Fleet in Benicia, CA. The vessels are available for donation to a maritime museum. Sea Shadow was also the inspiration for the stealth ship in the James Bond film Tomorrow Never Dies (in reality a modified SeaCat catamaran channel ferry).

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