"Semi" in my vocabulary equals something akin to "partial"

To me it appears that "semi" in semi-planing is not really intepreted as "partial" but more like "sub" or "pre" (full) planing.

To me is occurs as a catch all definition. I find it personally unsatisfactory and even unnecessarily confusing.

I followed the links and even there the concensus seems to be that planing and semi-planing are not sufficiently defined.

Several definitions even assume that there is a planing mode for a given hull. That assumption in itself seems errornous to me. It is probably the result of people focussing too much to on standard monohulls. As a result I really do find the concept of "semi-planing" useless when looking a beach catamarans.

Wouter