More recently, Hatteras Yachts’ patented the hull tunnel air induction system, which reduces cavitation (the formation of vapor cavities in water by the propeller). This proprietary system is intricate, but basically, “The shockwave of the blade collides with an air cushion that lies between the propeller and the hull bottom,” says Bruce. Resulting in far less noise and vibration being transmitted to the boat through the hull.
Hatteras Yachts also feature a passive underwater exhaust system on select models. At low rpm, exhaust exits through small, elliptical holes in the boat’s transom. Once the engines power up to approximately 1,400 rpm, the exhaust exits via larger vents in the hull. This system not only reduces diesel fumes into the cockpit, it also lowers sound levels on board.
But that’s only the beginning. Hatteras Yachts incorporate noise suppression systems and materials from top to bottom. Even the foam coring in the decks and side walls helps to reduce vibration and sound.