Nice you opened the research. I will post more info tomorrow, however at the moment I wish to show you something...
1) the "craft" body, where a high speed is jet (2)comming out - in the shape of a ring. The jet is uniform , and the size (thinknes) of this ring
can be 100 times smaller than the diameter of the craft . Under the Coanda effect , this ring is getting smaller and smaller along the flow, reaching
a minimal diameter and then increasing again (remember, this is actually like a tube of jet, getting norrower under the Coanda effect)
However , due the direction of the jet, a vortex is created in the areas noted with "6a". The blue lines are actually the income of the "fresh"
air. very similar to a hurricane. In the minimal section we have 2 streams going in opposite direction, generating a very intensive cloud of
electrons, transported to the body of the craft by the blue stream .This will give the "UFO" like glowing and is also avoiding the direct contact
between the craft and the air (the craft is covered by those electrons) .
This seems to inprove the speed of the craft with a factor of 20x. Once in space this would act like any other craft.
This ideea was studied by Coanda along his life, and continued by some of his students (they are now UNI teachers or engineers).Working models were
done, with doccumentation that can proof this (Romanian army).
Sorry - this is not explaining the antigravity (yet), but possible the electrical generated field can be used to shield gravitational forces
(hutchinkson effect). At the jet sped of 2M , plasma balls were generated.
The drawing(s) belong to Eng. Buzdugan from Romania (i guess this was his name) ,not my merit in any way..hope you enjoy it
[url=http://www.bizprogram.biz/ufo/a2.jpg]
note- "vid" means vacuum in Romanian