Not only can the Thunder Child roll over, but it can also navigate through particularly rough seas. Designed by Safehaven Marine, Thunder Child is supposed to be virtually unsinkable. That is, it must not go down even if it tips over in the water. The boat can accommodate up to 10 people. Powered by twin Caterpillar C12.9 engines, it can reach a top speed of 56 knots (62 mph) and a cruising speed of 45 knots. The hull is designed as a breakwater. It not only absorbs the power of the wave but cuts the waves like an icebreaker cuts ice.
Another brand Boston Whaler produces unique boats. Unibond’s proprietary polyurethane foam design produces a very strong, lightweight construction that is considered unsinkable.
As for other types of boats, catamarans have a number of undeniable advantages over monohulls, the most obvious of which is 1.5-2 times more internal space. Another distinct advantage of multi-hulls is that they are more buoyant in the event of a breach compared to monohulls with heavy ballast keels. An equally significant plus of catamarans is their high stability.