Hello All,
Apart from structural issues, why is the beam on catamarans generally about 1/2 LOA but on trimaran up to 1/1? What would be the difference of a tri sailing on one hull compared to a cat sailing on one hull?

Or is the difference obvious in other conditions? ( tacking, gybing,high seas, a s o )

Would a cat/tri be more prone to dive/get lee helm or something else?

What is the main reason for this difference?

( I'm thinking of making a Cat/Tri with a very modest center hull ( really a central beam for mast support.) or a down-scaled ORMA 60 at about 6 m LOA)

Please tell me what the catch is in this, because I suppose there might very well be a reason why this sort of design is not around.

Would be most grateful for input in this matter.

BR

Patrik Elfving