"It is a feature of the present invention to provide a high frequency gravitational wave generator that can be used for advanced propulsion, asteroid disruption and/or deflection, and communications through solid objects."
https://patents.google.com/patent/US10322827B2/en
"The third level of sophistication, that used in the most modern U.S. antigravity craft, is nucleo-gravitic. This involves the direct harnessing of the inside-the-atom-nucleus Strong Force to create a second gravitational field which can neutralize Earth’s natural gravitational field pull.
Two elements, Bismuth (Element 83) and Muscovium (Element 115), both have unique gravitational characteristics because of their particular unique atomic nucleus configuration (the ‘Magic Number’ of 184 neutrons). In them the Strong Force Field naturally extends slightly beyond their nucleus. It does so much more powerfully in the case of Element 115 than with Bismuth. These two elements Bismuth and Muscovium have stable isotopes which generate their own gravitational fields, secondarily and independent of Earth’s gravitational field. By amplifying that secondary gravitational field created by that extended Strong Force, a craft that is suffused with that secondary gravitational force field becomes what GE scientist Henry W. Wallace called a “kinemassic-field body”, [kine (force) + mass (amount of matter in an object)] This field endows the craft body’s mass with an integrated secondary-gravity force field. A pilot aboard the craft using power from a portable antimatter reactor on board can direct that secondary gravitational force field to lift the craft from the ground, and then switch to powering the craft forward (or backward) by manipulating the kinemassic-field body’s (the craft’s) polarity to activate either its inherent attraction to, or repellancy from, Earth’s gravitational field.
Once in space beyond Earth’s gravity field, the pilot can then switch the secondary-gravity kinemassic field to target the destination in space (e.g., the Moon) and activate the attraction-force option. Since the craft is now weightless and there is no air resistance, it zips rapidly towards its target. Important information about this third Strong Force Field technology* is available in Bob Lazar’s courageous expose video, ‘Bob Lazar: Area 51 and Flying Saucers”."
https://www.ufodigest.com/article/12-kinds-of-antigravity-and-reduced-gravity-u-s-crafts/