Cats are more stable faster offer more space and have two hulls.
Catamaran monohull comparison. A catamaran charter offers a great balance between sailing performance and comfort. Deciding between a catamaran and a monohull is a big decision and one worth considering well before taking the plunge. Downwind cats feel like a house gliding on the ocean at speed while monos roll from side to side.
A cat can sail at half the speed of wind but this will of course upon the angle of the wind. Monohulls are better weight-bearing platforms. Do you want one hull or two.
Alf Baird between a medium-speed monohull and a multi-hull catamaran RO-PAX ferry. Monohulls offer heeling faster steering response less noise from water slapping are cheaper to buy and maintain and have one hull. In the cabins and in the salon.
Old cruising catamarans may not go faster than 8 knots and modern monohulls can exceed 10 knots. One of the major advantages of a catamaran versus a monohull is their inherent stability. A catamaran is faster than the average monohull boat.
Besides there is ample headroom everywhere. Trimaran ship resistance has an average difference of 94 with monohull vessels and 23 against catamaran vessels. Stability is a big plus for families with young children or seniors who are not particularly steady on their feet.
Having sailed on both and built then lived for 5 years on a catamaran in this. As an outside living space with a trampoline at one end and a massive aft deck at the other there is simply no comparison with a monohull of the same length. So no clear comparison can really be made.