Alvin to Dive Deeper with New Ballast Tanks

The submersible Alvin prepares for a dive in September 2009. Photo by Rod Catanach, Woods Hole Oceanographic Institution. Bristol [Rhode Island’s] GMT Composites has been selected by Wood’s Hole Oceanographic Institution to build the 3 primary main ballast tanks on the Navy’s renowned research submersible Alvin.

Under Wood’s Hole’s management, Alvin is undergoing a major two-stage refit to upgrade its maximum depth rating from 4,500 meters (14,764’) to 6,500 meters (21,326’) in a quest to bring 98% of the ocean floor within reach of researchers in Alvin.

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