Get a good set of polars. These boats are designed with a static stability in excess of 60 knots. Tunnel - All cats have one, although some are specifically called the tunnel hull. Lightweight, good design, and sustained speed prevent slamming. Sneezing - Exclusive to cats, it's a spray from the front of the tunnel back into the boat.
Air compresses the water and creates a cushion.
The air cannot escape out the back of the tunnel and thus is forced forward. V-hulls, bicycles, and motorcycles bank into a turn. Power catamarans, on the other hand, are more similar to cars. If you think of your car as riding a bus standing up, it's the same idea Catamaran hull shape by nature is easily driven through the water. It requires less power to attain the same speed as a V-hull.