Just to clear up something about SeaSearcher being
Post# of 7795
Quote:
The SeaSearcher flies like a ray manually or autonomous just a few feet off of the sea-bottom and uses an array of specialized sensors to develop a 3D image of what is on and below the sea-bottom including its likely composition attributes.
Also being tethered doesn't make SeaSearcher non-autonomous. The buoy is merely an extension of the SeaSearcher as a whole.
Seafarer/Seasearcher