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Radio controlled (RC) hovercraft are model vehicles capable of moving over land and water using a cushion of air. This cushion of air is contained by an flexible airtight skirt. Several designs exist. Some models use two motors for steering and thrust, while others use one motor and a rudder. The skirt is inflated by an air pump, normally using a propeller.
RC hovercraft are capable of moving over almost all smooth surfaces. If the surface is too rough the hovercraft will lose pressure and the skirt will deflate.