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IMG_6978
The crack as viewed from the top side.
Date: 10/19/2013
Views: 6719
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IMG_6973
In this view fore is down, aft is up, port to the right and starboard to the left.
Date: 10/18/2013
Views: 6155
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IMG_6975
The crack as viewed from the underside. it is about 1 5/8 in (4 cm) long and 1/32 in (1 mm) wide. Notice the blue staining on the underside surface.
Date: 10/19/2013
Views: 8107
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IMG_6973_em_sa
Here I have annotated the important elements. The red outlines the fiberglass support bonded to the bottom of the tank. Blue arrow points to the blue crack. The crack formed exactly as a stress analysis says it should, at 45ยบ to the corner of that supp
Date: 10/18/2013
Views: 5521
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