This isn't a realistic discussion.......... Displacement makes a big difference. Take 2 30 foot sailboats, the Gemini
3000 catamaran and the Pearson
303, randomly chosen.
has a displacement of 6520
has a displacement of 10100
That's a really big difference......
If we are talking about bottom paint
, I would suspect they are not much different.
If we are talking about drag, the long slender hulls will be considerable faster, as hull speed
is related to the ratio of beam to length, not just waterline length.
Trying to make a comparison like this is like comparing apples to oranges as they say. These are small boats.
36' boats also random
MK II 36' displacement 13500
FP Mahe 36' displacement 11023
The weight differences will vary but the cats will nearly always be lighter.... except perhaps for some huge condo cat and some performance racing
Within boats built for the same basic mission, cats are always going to be significantly lighter in weight.