Word: hulling
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Returning players to watch: Lee Hull (SE) Week 3: William & Mary...
While Trieste II could reach great depths, it was little more than a spherical cabin suspended from a buoyant hull and capable of withstanding great pressures. But it was unable to rescue submariners or salvage vessels. What was needed, the Navy decided, was submersibles and ROVs able to maneuver at depths far in excess...
...carry three people to a depth of 6,000 ft., pick up objects with an arm and claw, and roam the sea floor at a speed of one knot (Alvin has since been lengthened to 25 ft. and given a second arm-claw, as well as a new pressure hull that enables it to operate as far down as 13,120 ft.). The stellar performance of the tiny sub during the second Titanic mission was only the latest in a long list of accomplishments. Among the more remarkable of Alvin's 1,716 deep-sea missions: locating and helping...
...time treasure hunters; even Fisher now includes archaeologists in his crew. At the Atocha site, Archaeologist Duncan Mathewson is carefully noting the position of each artifact and labeling each find. He has marked the site with grids, using yellow tape and pipes, and pinpointed each piece of the ancient hull...
Archaeologists are particularly concerned about the buried remains of wooden hulls, the part of the ship that has sunk into the seabed or been covered by drifting sand or silt and thus preserved. These remnants, which deteriorate rapidly when exposed to the open sea, provide a wealth of information to scientists. Says Richard Steffy, an INA ship reconstructor: "Ships were the most complex structures made by these societies. When you look at the remains of a ship, you're looking at a very high degree of technology within that period." Working with a crew of assistants and archaeologists, Steffy sketches...