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At random: USS Irex SS-482 was the first US submarine fitted with an operational snorkel at Portsmouth Naval Shipyard in 1946.

8-18/19 history Moderators: Jump to page : 1 Now viewing page 1 [25 messages per page]
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fortyrod

Posted 2018-08-18 3:09 PM (#89977)

Great Sage of the Sea

Posts: 853

Subject: 8-18/19 history

Atlantic 08/19/56: The experimental sodium-cooled nuclear reactor of the USS Seawolf (SSN575) suffers a failure in the steam plant during a full power test run while the new ship is at Groton, Connecticut.A leak of sodium-potassium alloy being used as the third fluid in the steam generator aggravates stress corrosion in the system, causing two cracks in steam piping and a leak in a superheater. Makeshift repairs permit the Seawolf to complete its initial sea trials on reduced power in February 1957.Due to the difficulties of running a sodium cooled reactor, the Navy decides to replace the Seawolf's sodium-cooled reactor with a water cooled reactor, and use only water-cooled designs in the future.

I wonder where this reactor was disposed of?

Holland Club

Posted 2018-08-18 7:07 PM (#89981 - in reply to #89977)

Master and Commander

Posts: 2490

Location: East Coast of Wisconsin

Subject: RE: 8-18/19 history

Disposal of Seawolf's Sodium reactor. From Wikipedia:
On 18 April 1959, the Navy disposed of the radioactive S2G plant by sealing it in a 30-foot high stainless steel containment vessel, towing it out to sea on a barge, and then sinking the barge at a point about 120 miles due east of Maryland in 9,100 feet of water. Twenty-one years later, the Navy was unable to relocate the container, but said that the radioactive materials inside should decay before the containment vessel deteriorated.

GaryKC

Posted 2018-08-18 7:48 PM (#89982 - in reply to #89977)

COMSUBBBS

Posts: 3669

Location: Kansas City Missouri

Subject: RE: 8-18/19 history

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