The Sea Shadow (designed, built and tested during the mid-1980s) repre
sents the application of several advanced ship technologies. The Sea S
hadow was recently reactivated and has been undergoing additional test
ing at Santa Cruz Island and in San Francisco Bay. This paper provides
a top level description of the ship and ship systems, is supported by
photos & sketches, and alludes to the types of data and experience ba
se which exists. The presentation of the paper includes video of the e
xterior and interior of the ship, the ship systems, and its at-sea ope
rations.