A Hovercraft is also sometime called an Air Cushion Vehicle or ACV.
Hovercraft fly just two feet above any surface, allowing it to navigate safely across water,
land, ice, snow or any combination.
Hovercraft are propelled by air screws (propellers) and
are supported by a cushion of air retained within a
flexible structure.
The flexible structure and cushion of air provide a very
low friction interface. The air is retained by a rubber
‘skirt’ that enables the craft to travel over a wide range
of terrain. The skirt simply gives way when an obstacle
is encountered.