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Jefferson Grau prepares viewport window mounting ring for alignment.

Jefferson Grau prepares viewport window mounting ring for alignment.
Jefferson Grau prepares viewport window mounting ring for alignment.
Jefferson Grau prepares viewport window mounting ring for alignment.
Jefferson Grau prepares viewport window mounting ring for alignment.
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209179
Kleindinst, Thomas N.
Jefferson Grau prepares viewport window mounting ring for alignment.
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01/04/2013
graphics/Alvin_viewport_mounting_rings_test/_DSC2883.jpg
Image Of the Day caption:
Technician Jefferson Grau daubs blue dye around the inside of holes on a viewport mounting rim that will be part of the newly rebuilt Alvin submarine. The dye will allow him to tell whether the rim seats properly when it is placed on titanium pegs welded to the subs personnel sphere. If any dye transfers to the welds, the welds are too large and may be interfering with the proper alignment of the rim. The Alvin upgrade is nearly complete and sea trials are expected to begin early this summer.
Photo by Tom Kleindinst
© Woods Hole Oceanographic Institution
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