The concept used then-current “research into the causes of solar flares, magnetic substorms, black holes, quasars, and UFOs”.
The concept was based on assumptions that “space-time is a ‘projection’ of a higher dimensional space” and that “a relationship exists between electromagnetic/hydromagnetic fields and gravitational fields.”
These assumptions are described as being supported as true by some astrophysical data.
Interestingly, the document goes on to explain that the “UFO phenomena may be due to extraterrestrial visitors, parapsychological experiences, or a combination of the two.”
Describing the typical UFO sighting as having “high speed, right angle turns, abrupt stops or accelerations” as well as other commonly described tropes of the phenomena, the document suggests that “UFOs may generate an artificial gravitational field or otherwise use properties of space-time which we are not familiar with.”
The paper goes on to theorize that UFO propulsion systems may “involve electromagnetic or hydromagnetic processes” citing the evidence of “burns, dehydration, stopping of automobile surfaces, power disruptions, and static electricity effects.”
So by citing these evidences, are they indirectly admitting them to be factual events?
The document then goes into the history of the concept of such propulsion systems which involves studies in physics, astrophysics and UFO studies in addition to the discovery and study of black holes and quasars.
The explanations here go a bit over my head, but feel free to read the document yourself. The drawings and graphics that follow are interesting to say the least.