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View of sphere from inside the chamber after pressure tests are completed.

View of sphere from inside the chamber after pressure tests are completed.
View of sphere from inside the chamber after pressure tests are completed.
View of sphere from inside the chamber after pressure tests are completed.
View of sphere from inside the chamber after pressure tests are completed.
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View of sphere from inside the chamber after pressure tests are completed.
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06/23/2012
graphics/Alvin_Sphere_Test_AIVL/IMG_1057.JPG
The testing took place the Northrop Grumman hydrostatic test chamber in Annapolis, MD, and was overseen by a team comprising engineers from WHOI, Navy, ABS, and Southwest Research Institute (SwRI), the company that managed the design and construction of the titanium sphere as a subcontractor to WHOI.
Image Of the Day caption:
On June 22, 2012, the new personnel sphere of the research submarine Alvin underwent testing to certify that it will be safe for human occupation to depths up to 6,500 meters. The sphere was evaluated at the Northrop Grumman hydrostatic test chamber in Annapolis, Md. It was tested to 8,000 metersnearly 12,000 pounds per square inchto meet a Navy requirement that the vehicle should be safe to a depth 24 percent deeper than its maximum operating depth. The sphere, seen here from inside the test chamber, passed with flying colors.
Photo by Advanced Imaging and Visualization Lab, WHOI
© Woods Hole Oceanographic Institution
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