Retrieving Large Underwater Items Using a Small Micro-ROV

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Retrieving Large Underwater Items Using a Small Micro-ROV

Postby scott_bentley » Mon Dec 13, 2010 6:29 pm

Retrieving Large Underwater Items Using a Small Micro-ROV

Craig Thorngren, Principal, Submerged Recovery & Inspection Services, LLC
http://www.submergedrecovery.com

After many years in the US Coast Guard – with the last several doing pioneering microROV work for Homeland Security applications – Chief Thorngren retired to the private sector and has continued to innovate and extend his unique knowledge of tactics and techniques with these vehicles.
This session will outline three particularly challenging recovery missions – each where the use of human diving was impractical or particularly difficult. In each case large, heavy items were located and retrieved using only the microROV underwater.
The first involves the retrieval of a Canadian sonar device at an exercise in Australia. The second involves retrieving ghost gear in Puget Sound, Washington State – a heavy equipment lift done only with microROV tether. The third involves the retrieval of 300 pounds (136 kilos) of scientific equipment for acoustic research on the coast of Oregon.
During the presentation the tools, techniques, and lessons learned during each mission will be explained. Video and pictures will be used to illustrate how this type of mission can be planned and executed correctly.
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Bio and Image

Postby scott_bentley » Mon Dec 20, 2010 5:06 pm

Chief Thorngren brings more than 22 years of service and seven years of ROV operations experience.

Several of his postings included New York City, Miami and Seattle. In Seattle, he was deployed with MSST Seattle (91101) in response to Hurricanes Katrina & Rita, the grounding of the cruise ship Empress of the North along with many other military out load’s in support of Operation Iraqi Freedom. Upon his retirement he was BlueView Technologies Field Operations and Training Supervisor.

He has since started his own company, Submerged Recovery & Inspection Services, which specializes in using a micro ROV to inspect and or recover items.

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