The UK Ministry of Defence recently announced that they are going to use ultrasonic anti fouling technology to help maintain the performance of three of its LCVP landing craft, the Australian Customs & Border Protection Service also installed ultrasonic anti fouling equipment on one of its patrol vessels. Several companies producing equipment using the same basic system of transducers attached inside the hull. These vibrations create a strong surface cleaning effect. Algae and slime is broken down and it is the absence of this preliminary surface that prevents marine growth of barnacles, weed etc: all hull materials except wood are suitable for this system. Hull openings such as water jets and tunnel thrusters and appendages e.g. pods and stern drives are also protected. Examples of vessel types for which this system is advertised are trawlers, ferries, tugs, barges and recreational power and sail. [More]