After retired US Navy submarine commander Jim Bryant won a lawsuit, the US Navy was forced to reveal the story of the sinking of the USS Thresher.
Why did the USS Thresher submarine sink?
The sinking of the USS Thresher has never really been fully explained, and the Navy has not published a report on it. Until recently. The tragedy occurred on April 9, 1963, with the USS Thresher being about 350 km east of Cape Cod conducting immersion tests. After one of them, he never emerged again, and was then found in six parts at the bottom of the Atlantic Ocean. 129 people on board then died.
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Earlier, experts indicated that the navy was in a hurry to bring the USS Thresher into the fleet, which also applied to the crew, which had entered the tests inadequately trained. The navy has officially revealed that the real cause of the sinking was improperly welded piping, which had shorted the ship’s electrical system. The crew was unable to get to the equipment that would stop the flood in time, and the ballast tanks did not function properly.
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We only found out about it recently and not by covering up a mistake, but by simply paying attention to the operational details of American nuclear submarines. The Navy wanted these not to fall into enemy hands.