An Air Cushion Vehicle (ACV) is a type of transportation that travels over land or water while being lifted by a cushion of air. This is achieved using large fans that blow air underneath the vehicle, creating a pressure difference that allows it to hover slightly above the surface. ACVs can move quickly and smoothly over various terrains, making them versatile for different applications. ACVs are often used in military operations, search and rescue missions, and for transporting goods in areas where traditional vehicles may struggle. They can operate on surfaces like mud, ice, and shallow water, providing unique advantages in challenging environments.