All boats perform poorly when the weather is really rough. The degree to which they can remain seaworthy in inclement weather depends on design decisions. A hy

All boats perform poorly when the weather is really rough. The degree to which they can remain seaworthy in inclement weather depends on design decisions. A hydrofoil design actually does really well in choppy waters, because you elevate the hull out of the waves. The lift generated by the foil happens below the waterline, so you don't feel the surface waves. Just how large a wave you can negotiate with a vessel like this depends on the elevation provided by the foil design and your stomach for hard landings. All in all, if you were to take the foils off this boat, I'd venture it would handle worse in the same waters as the foiled boat. Sidenote: Also, FWIW, I didn't downvote you; I dropped you an upvote, because I can see why someone might think this way.