Electrogravitics Systems (1956 report).

Report GRG-013/56, 'Electrogravitics Systems,' was produced by the Gravity Research Group of Aviation Studies (International) Ltd. (Special Weapons Study Unit, England) in February 1956, with a companion 'The Gravitics Situation.' It defines electrogravitics as a synthesis of electrostatic energy for propulsion, lists collaborating firms, and argues high-dielectric ceramics could enable Mach-3 flight. A copy was later found uncatalogued at Wright-Patterson AFB. The report's existence is documented; its physics claims are unverified.