Hovercraft
Hovercraft: H overcraft , also known as an air-cushion vehicle or ACV , is a craft capable of travelling over land, water, mud, ice, and other surfaces. Hovercraft are hybrid vessels operated by a pilot as an aircraft rather than a captain as a marine vessel. Working of Hovercraft: The basic mechanism of a hovercraft is very simple: there's an engine that powers both a large central fan, pointing downward, and one or more other fans pointing backward. The central fan creates the lift that holds the craft above the waves; the other fans propel the craft backward, forward, or to the side. A rubber skirt (with or without fingers) traps a cushion of air under the craft. Side-wall hovercraft have only partial skirts: with solid sides and a skirt only at the front and back, they can be powered by quieter propellers on water jet engines, making them quieter. . The skirt greatly improved this situation with obstacles no longer bei...