Page 72: of Marine News Magazine (November 2015)

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WORKBOAT DESIGN “It is environmental considerations that impact design pressures. Performance standards are thereby dictated by where the closure is located on a vessel, and its exposure to the environment. They will also be determined by additional factors, such as meeting relevant ? re-rating requirements, for example.” – Andrew Mund, technical director for AdvanTec Global Innovations commercial applications in view of its security bene? ts.

Other features, while not as imme- diately visible, can have a profound impact on the daily operation of the vessel. Whether a closure is power op- erated, or operated manually, would be one example. Can the closure be operated remotely? Does the closure utilize quick-acting dogs (also known as central dogging), where a single handle turns an internal linkage to activate all of the locking lugs in the frame at once? Or must each dog be opened and closed individually, re- quiring more time and effort on the crew’s part? “The range of features available on modern closures is quite extensive,” says Mund. “Increasingly, closure manufacturers are being tasked with providing greater utility and conve-

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