I'm with Factor
on this one [as well as his choice of sailing vessel!!
How you can remotely compare any "sailing" vessel, arguably defined as "powered by wind
alone" with these designs which require an engine
to run all the time so that the hydraulics will operate is just beyond me. One of the earlier posters mentioned 4 classes
in a race
and that's where it should lie. However, I should declare that I tend to have vintage interests!