[PSUBS-MAILIST] window opening

[hank pronk via Personal_Submersibles]

Hi All,I need help to figure out the depth rating of my port in E3000.  Right now it is a copy of a  P6 port at 14 inches od and 6 in ID and 3 inches thick.  I want to open the port frame up to 8 inches ID from 6 inches ID.  The thickness of the port will reduce by about 1\4 inch.  I need to know how much this will impact the depth rating.Hank
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