Hello Folks, I was wondering about the terms "semi displacement" and "modified V" hull.
Being an ex sail boater I'm very familiar with the "displacement hull" The boat I'm considering is a "modified V". A term I'm hot quite clear on. Most of the trawlers I've seen list their hulls as displacement or semi displacement. The cruiser yachts around my parts fall mostly into the semi displacement category I believe. Hence their ability to plane provided they apply enough power. So where does a modified v fall into the mix?
From the looks of the bottom of the boat I'm considering (Heritage West Indian 36) I'd call it a semi displacement. But it's listed everywhere as a modified V. The forward sections to my eye appear very sail boat like. (Probably thanks to Charlie Morgan's eye). Very rounded and a lot more sculpted than the twin gas cruisers I see. The transom ends in a very shallow V. I don't see much difference in the grand scheme between it and a semi displacement hull. So, is this all just PR
hype from builders or is there really something profound going on here. My guess is it's just minor variations of the same thing???
Also, if there is a big difference what effect does it have on fuel economy? Also,this boat has somewhat rounded chines, which I thought was rather odd. Especially when it is considered a "V" hull. I suspect there isn't much difference between the "semi displacement" and this "modified V" in sea keeping. Any thoughts?