Stabilized air cushion vehicle

A stabilized air cushion vehicle adapted to travel over a surface comprising:

• a body having a substantially imperforate central primary underside area and at least two substantially imperforate secondary underside areas, smaller than said central area, on substantially opposite sides of said central area;
• first means on said body defining a substantially endless channel-like primary nozzle peripherally surrounding said central area and peripherally directed inwardly beneath said central area and connected to a supply of air under pressure to create and contain a primary air cushion under said central area;
• second means defining at least two substantially endless channel-like secondary nozzles on said body, each spatially separated from said primary nozzle, each peripherally surrounding a corresponding one of said secondary areas, and each peripherally directed inwardly beneath a corresponding one of said secondary areas which it surrounds, said secondary nozzles are connected to a supply of air under pressure to provide a secondary air cushion under each of said secondary areas, whereby since the pressure of each of said secondary air cushions varies inversely with the height of the secondary area above the surface over which the vehicle is traveling said vehicle will tend to righten if said heights of said secondary areas become substantially unequal.