Quote:
Originally Posted by JohnC
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Questions:
1) Why not extend the stringers forward to the bow? There will be no casting deck.
2) Do I need to raise the last foot or so of stringers to support the transom?
Thanks,
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The 4 stock stringers in my Seafari go all the way to the bow, at least to the point where the bottom of the hull rises to the top of the stringers, where they just blend into the hull. I suspect that the hull deadrise from that location forward is high enough that the hull shape alone creates a lot of stiffness. However the Seafari bunks, or the casting platform in the CC models, also add additional stiffness, so increasing the thickness of the deck core forward of the stringers might not be a bad idea. As Joel mentioned, stiffness of a cored structure is proportional to thickness raised to 4th power, ie, a 2X increase in thickness will increase stiffness by 16X!
Regarding the transom/stringer joint, the original stock configuration was designed for twin engines of approximately 170 hp total, but if you're planning to add a bracket, which will tend to increase the leverage/bending moment of the motor on the transom, adding some gussets at the transom certainly can't hurt anything, especially if you're planning to hang a big heavy 200+ hp motor on it!