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
• Transfer of linear momentum from the Quantum Vacuum to magnetoelectric and chiral molecules
• Notsosureofit's theory based on Equivalence Principle
• Mike McCulloch's MiHsC Theory
• Curving Rf beams - The magnitude of the bending needed, was not shown by the thermal camera images taken at Eagleworks.

8/5/14 - Greg Egan obtained an exact solution for the resonant modes (having azimuthal quantum number m=0, constant electromagnetic field variation in the azimuthal direction) of a cavity in the shape of a truncated cone with spherical ends. Greg Egan calculated the forces and showed a proof that the net force is zero and therefore that there is no thrust force in a resonant electromagnetic cavity of any arbitrary shape, and for any arbitrary mode shape, when the cavity is analyzed according to the standing wave solution of Maxwell's equations.