Documents / Official release
This Federal Bureau of Investigation file section, 62-HQ-83894 Section 6 (serials 246 to 301), collects FBI memoranda and correspondence from 1950 to 1952 on flying saucers. It covers green fireballs and discs seen near sensitive installations in New Mexico, Dr. Lincoln LaPaz's analysis, and the Air Force's Land-Air study known as Project Twinkle. It also holds an OSI summary, a USAF directive on reporting unconventional aircraft, a dissolving object reported by Philadelphia police, and letters from members of the public.
From the source:Release of 2026-05-08 Incident: N/A, N/A. The FBI's 62-HQ-83894 case file includes investigative records, eyewitness testimonies, and public reports concerning Unidentified Flying Objects and flying discs documented between June 1947 and July 1968. The records include high-profile incident accounts, photographic evidence from sites like Oak Ridge, TN, and technical proposals regarding potential propulsion systems. Additional topics include convention programs, researcher accounts, and extensive media coverage from the period. This file is partially posted on FBI vault with more redactions and some pages missing. Included here is the complete case file with several newly declassified pages and only minor redactions.
“Office of Special Investigations”19 pages
that power to accomplish this end would have to be derived from the cracking of an atomic fuel such as heavy water. In that connection he states that the ionosphere surrounding the earth radiates positive ions towards the earth's surface. Many of these are dissipated by combining with particles in the atmosphere with the result that positive ions are more concentrated near the earth's surface than higher above it. He reasons that a disk could be raised in the air by emitting a great quantity of negative ions through its upper surface and causing a decrease in pressure which would result in the pressure underneath the disk forcing it upward. He indicates that somewhere between the surface of the earth and the ionosphere this pressure would equalize at which point the disk could go no higher. It could then be moved horizontally by emitting negative ions in the direction in which it is desired to move. Mr. Eekhout stated that he did not feel such a device could be remote controlled since it would probably not be possible to maintain radio contact with it. He feels, however, that the occupants of such a device would be fully protected since according to the electrical theory demonstrated by Faraday's Cage the current involved in the propulsion of such a device would concentrate itself around the edges of the disk. The foregoing is furnished for your information. (NOTE ON YELLOW: Eekhout was interviewed at 2:15 p.m. 5-5-52, by Supervisor V. H. Bailey by reference from Mr. Nichols' Office. Bureau files contain no data identifiable with him.) VEQ: $ r=d\pi $
Official release, from the pursue collection. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 271 pages are in the text index: search them above, or from the library's search.