When a Flats Cat Passes over the water, air is injected or rammed into the large bow entrance raising the boat up out of the water allowing the boat to ride on top of the water and gently walk from side to side on the cat hulls, eliminating the pounding affect created by most Mono hulls.
The seemingly flat hulls push water straight out away from the boat, far enough that spray cannot be drafted up the almost vertical sides, and into the boat. Since natural waves are uneven and do not roll evenly like a wake from a boat, the cat hulls encounter waves at different intervals creating a side to side or walking motion.