"Electromagnetic force is said to be powerful. Hence if this Flying Saucer was to be a reality, then it might as well be the fastest aircraft. Scientifically, the Electromagnetic force is (2.2 x 10^39) stronger than the Gravitational. To put it into perspective, if the energy required for mechanically lifting a block at a distance of one-quarter of a millimetre is, say X. If the same energy given to the block using Electromagnetic force, it could lift the block (5.6 x 10^24) km. That is how powerful the aircraft propelled using Electromagnetic force would be!"
https://advancetec.co.uk/a-look-into-nikola-teslas-research-and-patenting-of-a-ufo/
"Nikola Tesla, inventor of alternating current motors, did the basic research for constructing electromagnetic field lift-and-drive aircraft/space craft."
"The greater the frequency the electricity, the more it pushes against the earth's electrostatic and electromagnetic fields."
"The electricity jumps out on and flows over the metal sheet, giving off a very strong electromagnetic field, controlled by the transformer."
"Outside the earth's magnetic field, another propulsion system must be used, which relies on the first"
"continue to transmit that magnetic field frequency"
"A machine built with a set of super conducting magnets would simplify and reduce electricity needs from a vehicle's transformer circuits to the point of flying along efficiently and hovering with little electricity."
https://nexusnewsfeed.com/article/science-futures/nikola-tesla-s-flying-saucer-electromagnetic-field-lift-experiments/
"magnets to levitate a train car."
"increases the power of the magnetic field."
"these magnets repel one another when matching poles face each other."
https://www.energy.gov/articles/how-maglev-works
"generates a force per volume combining both lift and propulsion."
https://patents.google.com/patent/US20060145019A1/en
"Electromagnetic suspension (EMS) is the magnetic levitation of an object achieved by constantly altering the strength of a magnetic field produced by electromagnets using a feedback loop."
https://en.wikipedia.org/wiki/Electromagnetic_suspension
"The electric motor powered by the electrical energy generated by the thermoelectric generator, and supplies input voltage such that the shell spins at high angular speeds, vibrates at high frequencies, and generates an electromagnetic field."
https://patents.google.com/patent/US10135366B2/en