Picture I Kimmo Huosionmaa The term "antigravity" means the actually silent way to raise the aircraft from the ground. In the real world, this term actually means that engineers try to repeal the magnetic field of the Earth, what would cause that the aircraft would rise above the Earth. In some tests, there have been tested the magnets, what could push aircraft to airborne. They are actually one version of magnet catapults, but in this case, magnets would pull the aircraft straight to air, and in this system would be used the pulling effect between the same mark heads of the magnets. And this kind of system is tested with levitating (Maglev) trains, where magnets push the train above the rail. Those magnetic rails would work the same way as gauss guns, where magnets will accelerate ammunition. Those magnets would be suitable to install in some warships or special runways, and they might help to send airplanes to air, with very heavy cargo. Also, pressurized air h...