Theory

This page will outline some candidate theories of operation (or non-operation).

Debunking Theories

• These theories should be explained, then debunked with the simplest explanation, with a link to a dedicated page to show the work or work in progress that backs up that explanation.

Experimental error

• It's all a hoax/conspiracy
• Simple measuring error
• Thermal effects
• Mechanical vibration
• Magnetic effects with environment

These are discussed in more detail at Possible Error Sources.

Proponent Theories

• Guido Fetta's, Cannae Drive creator's Theory
• Roger Shawyer's, EM Drive creator's theory
• Quantum foam MHD
• Harold White's Quantum vacuum plasma thruster (QVP thruster)
• Harold White's Warp effects
• Evanescent waves<ref>2/2/15 post by @aero modeled evanescent waves using MEEP. Conclusion was that, due to rapid dropoff at the frustum surface, these were of insufficient magnitude to explain the thrust.</ref>
• Transfer of linear momentum from the Quantum Vacuum to magnetoelectric and chiral molecules <ref>http://forum.nasaspaceflight.com/index.php?topic=36313.msg1330846#msg1330846 and http://forum.nasaspaceflight.com/index.php?topic=36313.msg1333392#msg1333392 </ref>
• Notsosureofit's Equivalence Principle hypothesis <ref>http://forum.nasaspaceflight.com/index.php?topic=36313.msg1375157#msg1375157</ref>
• Mike McCulloch's MiHsC Theory
• Curving Rf beams<ref>Post by @aero</ref>

8/5/14 - Greg Egan modeled the resonant modes of a conical cavity.

References

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