Thanks Daniel, I appreciate the invite to hang around. My first ever boat build was a little tippy dory that I added a pontoon to it so it would be stable enough to fish out of. Then I built a dory/skiff which had enough bottom area to be stable enough to fish out of and fished out of that boat for something like twenty years. And as you might know I've also built a birdwing SCAMP in 2014 with an OK for the experimental rig from Mr. Welsford so I guess I have enjoyed the wonderful seaworthiness of the dory type hulls as well as the great stability and huge capability of the small but powerful SCAMP design. So thanks for having me stick around.
One thing I'm learning is that enough marine foam to make a boat unsinkable sure takes up a lot of space especially if you've got enough ballast aboard to also make the boat self- righting. I was a surfer for many years so I have an affection for foam because I've never seen a surfboard that wouldn't float. However it's a tricky mess to balance foam flotation and water/lead ballast amounts with space requirements for crew and provisions.
There's also the windage thing. A boat with enough flotation high enough to make a boat unstable when it's up-side-down, also means that the boat will probably have a lot of freeboard exposed so more vulnerable to being pushed around by high winds so it's a real balancing act best left to professionals. I will be looking for a good boat designer to help check my figures for my flotation/ballast plan for the Yangtze because I do not pretend to be a boat designer. I will definitely need a living breathing boat designer at some point. But one thing that Captain Short wrote about his large Pelicans was that a Great Pelican can sail quite happily along even half full of water. So in redrawing the Yangtze Pelican for my own wants and wishes, I've come to realize that the Yangtze Pelican may be a boat that could be somewhat rowable, self-righting and unsinkable all at the same time. Oh! I forgot to mention that it can slide by in 6 or 7 inches of water. And that's a pretty tall order in the boat design world. Not that it would row all that well but never underestimate the rowing power of an old man scared half to death and rowing for dear life in high seas. (And you could easily say never overestimate it either).
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