Historical research guide · 0300 · 2010
DIRD Antigravity for Aerospace Applications
DIA / AAWSAP contractor
In one minute
DIA’s 2010 AAWSAP reference document maps theoretical routes to gravity control for aerospace use. It reviews Newtonian mass arrangements, general-relativistic frame-dragging and relativistic-repulsion proposals, and quantum-vacuum ideas. The report calculates scales that make several mechanisms impractical: Forward’s toroidal frame-dragging device would need dwarf-star-density matter and acceleration near 10¹¹ m/s², while dark energy’s local density is far too small for propulsion. It then describes a Casimir-cavity experiment whose predicted upward force is about 10⁻¹⁴ N for a million cavities and proposes measuring it. It also reviews atom–surface-force ideas and calls for measurements of gravitational permeability. It does not report an operating gravity-control device or an observed propulsion effect.
Connection
This is a government-commissioned survey, not a flight demonstration. Its value is the mechanism-by-mechanism accounting, the stated orders of magnitude, and the proposed laboratory tests.
From the source
Antigravity effects can be implemented by manipulating spacetime, and Einstein’s General Theory of Relativity gives a prescription for a variety of different antigravity generators — as does Newton’s law of gravity, in classical form.Foreword, p. v; Section I: Introduction, pp. 1–2
Forward’s dipole gravitational field generator produces an antigravity field at the centre of a torus when mass is accelerated through a pipe wound around it, by the Lense-Thirring effect; countering Earth’s 1 g would require dwarf-star-density matter accelerated at about 10¹¹ m/s² through pipes as wide as a football field.Section III-A, Forward’s Dipole Gravitational Field Generator, pp. 4–7
The energy conditions that forbid negative energy density are mere hypotheses, they are violated generically by quantum effects and by all generic spacetime geometries, and negative energy has already been produced in the laboratory — via the Casimir effect and via squeezed states of the electromagnetic vacuum.Section III-C, Negative Energy-Induced Antigravity, pp. 9–10; Appendix A, pp. 29–33
Because the vacuum has a negative-pressure equation of state, the work done by the vacuum pressure maintains a constant vacuum energy density as space expands: the vacuum acts as a reservoir of unlimited energy that provides as much energy as needed to inflate any region of space to any given size.Section III-D-2, Vacuum Energy of Einstein’s Cosmological Constant, p. 14
A rigid Casimir cavity at rest in a weak gravitational field is pushed upward, because negative Casimir energy behaves like negative mass; Calloni’s proposed stack of a million rigid cavities would raise that push to about 10⁻¹⁴ N, two orders of magnitude above what the VIRGO gravitational-wave antenna is expected to detect, and the report recommends the experiment be funded and performed.Section IV-A, pp. 19–21; Section V, Conclusion: The Way Forward, p. 28
The gravitational equivalent of magnetic permeability is a property of matter that is still largely unexplored; a material with an anomalously large or nonlinear gravitational permeability would allow small-scale gravitational field generators, and the report calls for a coordinated programme to determine that value for all known forms of matter.Section V, Conclusion: The Way Forward, pp. 25–26
The way in
https://documents2.theblackvault.com/documents/dia/AAWSAP-DIRDs/DIRD_19-DIRD_Antigravity_for_Aerospace_Applications.pdfHow to cite it
DIA / AAWSAP contractor (2010) DIRD Antigravity for Aerospace Applications https://documents2.theblackvault.com/documents/dia/AAWSAP-DIRDs/DIRD_19-DIRD_Antigravity_for_Aerospace_Applications.pdf