Word: sonar
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Dates: during 2000-2009
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...crew of the Greeneville, who should have been concentrating on a rapid surfacing drill, and the demands of entertaining the civilians apparently threw the submarine's rigid procedural schedule dangerously off-target. There were also mechanical problems from the outset; Griffiths reports that a screen meant to display sonar readings to the commander and others on deck was not working, but when officers discovered the malfunction, they decided to put off repairs until returning to port...
...course, human error may have played a significant role in the collision as well. After an extended on-board lunch with the civilians, the crew was left with little time to perform a critical periscope check, Griffiths said, and just before the collision, the sonar room was left without its supervisor, who was assigned to be a "tour guide" instead of watching over a trainee manning the sonar display. The continuing inquiry could have serious repercussions for several officers on board the sub, including Cmdr. Scott Waddle, who last week spoke exclusively to TIME about the collision - and the aftermath...
...officers were flabbergasted by the disaster and privately were quick to blame Waddle. Although 16 civilians were aboard, they did little more than "pretend to drive" the submarine during the rapid ascent drill, Navy officers said. Waddle and his crew were still responsible for scouring the surface with their sonar and periscope before launching the "emergency main ballast blow." The choppy waters and the ship's white color may have made detecting the trawler difficult. But Navy officers said that if, as the trawler's crew said, their vessel was steaming at 11 knots, it should have been generating enough...
...officers were flabbergasted by the disaster and privately were quick to blame Waddle. Although 16 civilians were aboard, they did little more than "pretend to drive" the submarine during the rapid ascent drill, Navy officers said. Waddle and his crew were still responsible for scouring the surface with their sonar and periscope before launching the "emergency main ballast blow." The choppy waters and the ship's white color may have made detecting the trawler difficult. But Navy officers said that if, as the trawler's crew said, their vessel was steaming at 11 knots, it should have been generating enough...
...fact that the sub crew saw the ship about an hour before impact. So you have a track on this ship, and then you lose it. To me, it makes a lot more sense than, gee, we never saw it. At least they did see it; at least the sonar is working...