anon you has the sauce on those pdfs? an anon wants to know.
Also check out Secrets of Antigravity Propulsion by a Physicist named Paul Laviolette. Very good read. Goes into the math and science behind this technology.
https://etheric.com/secrets-of-antigravity-propulsion-tesla-ufos-and-classified-aerospace-technology/
https://www.cheapholidayrentalsdirect.com/secrets_of_antigravity_propulsion_tesla_ufos_and_classified_aerospace_technology_download.pdf
https://www.thriftbooks.com/w/secrets-of-antigravity-propulsion-tesla-ufos-and-classified-aerospace-technology_paul-a-laviolette/439965/#isbn=159143078X&idiq=10343670