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

Approved for Release 2026 CLASSIFICATION [REDACTED] CENTRAL INTELLIGENCE AGENCY REPORT NO. SO DB-27143 CD NO. COUNTRY Chile/Germany DATE DISTR. 31 July 1950 SUBJECT German Scientist's Article on "Flying Discs" NO. OF PAGES 1 PLACE ACQUIRED Chile, Santiago NO. OF ENCLS. 1 (LISTED BELOW) DATE OF INFO. Prior to mid-1950 SUPPLEMENT TO REPORT NO. GRADING OF SOURCE COLLECTOR'S PRELIMINARY GRADING OF CONTENT * A. COMPLETELY RELIABLE B. USUALLY RELIABLE C. FAIRLY RELIABLE D. NOT USUALLY RELIABLE E. NOT RELIABLE F. CANNOT BE JUDGED CONFIRMED BY OTHER SOURCES PROBABLY TRUE POSSIBLY TRUE DOUBTFUL PROBABLY FALSE CANNOT BE JUDGED [ILLEGIBLE] [HW: Return to CIA Library] [STAMP:] THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL SECURITY OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT SO U.S.C., 31 AND 92, AS AMENDED ITS TRANSMISSION OR THE REVELATION OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW REPRODUCTION OF THIS PAGE IS PROHIBITED. * Documentary THIS IS UNEVALUATED INFORMATION SOURCE Attached for your information is a copy, in translation, of an article submitted by Dr. Eduard Ludwig for publication in Condor, a German language magazine published in Chile The article is entitled "The Mystery of the 'Flying Discs,' a contribution to its possible explanation". [HW: Good report but lacks substantiation] [HW: Good report but lacks substantiation] The significant conclusion drawn by this scientist in this report is that the old handicap of "boundary layer" as a moving object or airfoil had been exploited to produce an advantageous reaction and is the factor controlling the success of the "flying saucer" type of airfoil. CLASSIFICATION RESTRICTED [HW: Good report but lacks substantiation] STATE NAVY NSRB DISTRIBUTION ARMY AIR FBI