The "Gravity-Plane", as Hunt Aviation likes to call it, uses gravity's dual properties - buoyancy which creates an upward motion in order to gain altitude, and gravity acceleration which creates a forward and downward gliding motion. The two motions combined form the heart of Hunt's new gravity powered technology, a technology that could make for a much healthier and cleaner environment.
In the Hunt Aviation's "Gravity-Plane", buoyancy is created by gas bags filled with helium within two large rigid pontoon shaped lifting bodies. This buoyancy lifts the "Gravity-Plane" to high altitudes to create lighter-than-air lift.
Despite being a better "lifting gas" than Helium, Hydrogen is generally not used in this way because it is combustible. Inert Helium, widely used in lighter-than-air airships, can now be used to attain altitudes of over 100,000 feet and may be built very large to carry heavy loads of passengers and cargo approaching 1,000 tons according to Hunt. By comparison, a U. S. military C-17 heavy lifter only carries 70 tons.
Obvious benefits of the technology are that the aircraft does not require fuel, which is aviation's main cost. This also makes the aircraft safer in terms of fuel burning or exploding. Furthermore, having no waste emissions or noise, the aircraft is extremely environmentally friendly. "Hunt's invention is the first practical use of gravity to provide a motive force by forming a continuous cycle out of two forces of gravity with the result being, for the first time ever, self-sustained fuel-less flight and this is a tremendous and historic accomplishment", stated Gene Cox, President of Hunt Aviation Corp.
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