Hovercraft
From MarineWiki
Contents |
General
A Hovercraft, or Air-Cushion Vehicle (ACV), is an amphibious vehicle or craft, designed to travel over any sufficiently smooth surface - land or water - supported by a cushion of air, ejected downwards against the surface close below it.
Mechanism
Hovercraft or Air Cushion Vehicles (ACVs) continuously force air under the vessel allowing some of the air to escape around the perimeter as new air is forced downwards. They are usually propelled forward by airplane propeller type devices above the surface of the water with rudders behind the air flow to control the vessel.
Description
