Hull Flex ?

[FELLOW-SHIP]

All hulls will flex some that is the nature of boats in general. Just his week I saw a TV program that talked about building larger ships out of steel and some were welded together and some were riveted together anyway in the show they said that the riveted ships could flex some which was better because if they didn’t then they would crack like the welded ships can. What I like about SeaCrafts is that they have the two large port and starboard stringers and then you have the center line stringer on your Potters. In addition to that you also have the 4 longitudinal steps in the hull and the hull lamination schedule is much better / thicker then many of the boats build today. It seams that most companies want to build light weight boats now a days by either using a foam lamination with in the hull or by not using as much glass in the boats, usually that adds to the potential of damaging flex in the final product. There are times I hit 2-4 footers running at approx 30 mph waves coming either from the port or starboard bow lets say at 30 degrees on either side that I get some shutter effect as well. I would say that if not all most boats well do that some depending of boat and sea conditions. As for you doors you might check for a wobble in that section of your boat or stress cracks around that area or you might need to shave down ¼” around the doors to prevent your problem.
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