Invention of mine called:
Altered Electric Field Frame of Reference (AEFFOR or A4) Drive.
Uses entirely different approach than the EM drive which is also a propellantless, non-Newtonian propulsion system.
Depends entirely on the strength of electric field. Thrust is easily increased by orders of magnitude with better future prototypes…Enough to be employed as highly efficient non-staging space launch system engine still work in progress.
This is “first” documented test. Tests have been done much earlier including those for verifying breaking Newton’s 3rd Law back in 2003.