I just found this video on You Tube. A capacitor is lifting itself and even a wooden stick into the air with just pulsed DC electric current. This is the website:
www.youtube.com/watch?v=006d36WWyaQ. I wonder how many years before it can be utilized for air or space travel?
This is not a new technology. Even Nikola Tesla and others made experiments with antigravity.
The problem is the practicle use. Its quite unstable for any daily use, its hard to drive etc.
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If there are some military projects (which I am sure there are), it will not be released to public soon. Maybe some so called UFO´s are tests of such planes. If it is so, they are being seen since the second world war.