Keeping a vessel's hull clean and free of debris has concerned owners and suppliers since the earliest days of the maritime industry. Today, increasing demands on speed and propulsive efficiency require owners to keep their hulls clean. Meanwhile, ever-restrictive legislation continues to limit the means by which this is accomplished. A New Zealand-based company had developed a solution to this timeless problem - a quasi "carwash" for ships, which according to its creators at Orca Marine Co., Ltd., will provide a faster, safer and more economical means of cleaning ship hulls. Hull surface roughness, particularly in connection with marine fouling, is a major contributor to ship powering requirements and fuel costs.