Por 15 has saved me many a headache on restoring auto tanks. Not sure on the size of this tank but it may be something to look into. Seals the...
Depends on your sailplan, but the ones I've seen have been fairly stable. With the double outriggers even more so. If you get a chance check...
Just got the book and plan on building a Wa-Apa with the higher freeboard of 24" for the trimiran. Mine will be a 3 part boat which is bolted...