https://vixra.org/pdf/1905.0244v2.pdf
EM Drive Thruster Levitation effect by Dual Parallel Solenoids or cone shaped Solenoids in a disc form.
Singular Lorentz force due to a direct current in a magnetic field.
The magnetic B field outside a long solenoid, shows a strong field reduction down to zero and can be used for singular Lorentz force based EM Drive without the usual EM (Electro Magnetic) reaction force.
According to Q-FFF Theory, all magnetic fields should be interpreted as the effect of TWO monopolar ( North and South force trajectories through space represented by field lines )
Outside a solenoid, however there is NO or a reduced magnetic B-field, due to the PARALLEL propagation of both field lines, which is postulated to be the origin of the B field.
Several configurations for effective EM thruster levitation without reaction force are possible, like cone shaped solenoids concentric organized in the form of a disc with internal circular organized direct curent conductors through the center of the solenoids, creating the Lorentz force for the EM Thruster. (see image) Also rectangular shapes of multiple solenoids should lead to effective EM Thrusters.