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Barbara Callahan operates pull tester as Rick Trask monitors results.

Barbara Callahan operates pull tester as Rick Trask monitors results.
Barbara Callahan operates pull tester as Rick Trask monitors results.
Barbara Callahan operates pull tester as Rick Trask monitors results.
Barbara Callahan operates pull tester as Rick Trask monitors results.
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295095
Kleindinst, Thomas N.
Barbara Callahan operates pull tester as Rick Trask monitors results.
Still Image
04/27/2017
graphics/Rigging_Shop/_DSC9516.jpg
Image Of the Day caption:
Engineering assistant Barbara Callahan operates the computer interface of a hydraulic tensile machine in WHOIs rigging shop, as shop manager Rick Trask looks on. Callahan and Trask were testing the breaking strength of a surface buoy balea metal loop on top of a buoy to which a line can be attached to control the surface buoy during deployment or recovery. The rigging shop uses tensile machines to pull test mooring wires, to verify the manufacturers listed breaking strength for new wires and synthetic materials, and to test the breaking strength of wires and ropes to be used on UNOLS vessels.
Photo by Tom Kleindinst
© Woods Hole Oceanographic Institution
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