CIA-UAP-005, German Scientist's Article on 'Flying Discs'

This 1950 CIA Information Report from Chile discusses a German scientist's article theorizing that "Flying Discs" could be explained as a new type of aircraft based on aerodynamic principles developed in German research facilities during and after WWI, using rotating cylinders or gas-turbines to create lift through boundary layer manipulation, rather than conventional wings. A redacted version of this report has been available on CIA's public website.