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
This image contains all the information on the document. UNCONVENTIONAL AIRCRAFT OBSERVED SEPTEMBER TEN AND ELEVEN, FIFTY ONE IN VICINITY FT. MONMOUTH, NJ. INDIC. ON SEPTEMBER TWENTY INSTANT, ANDREW J. REID, G-TWO FT. MONMOUTH, NJ, PROVIDED FOLLOWING REPORT OF UNCONVENTIONAL AIRCRAFT OBSERVED BY RADAR AT ABOVE AMY INSTALLATION. QUOTE ON SEPT. TEN, FIFTYONE, AN AN/MPG DASH ONE RADAR SET PICKED UP A FAST MOVING LOW FLYING TARGET, EXACT ALTITUDE UNDETERMINED AT APPROXIMATELY ELEVEN TEN A.M., SOUTHEAST OF FT. MONMOUTH AT A RANGE OF ABOUT TWELVE THOUSAND YARDS. THE TARGET APPEARED TO APPROXIMATELY FOLLOW THE COAST LINE, CHANGING ITS RANGE ONLY SLIGHTLY BUT CHANGING ITS AZIMUTH RAPIDLY. THE RADAR SET WAS SWITCHED TO FULL AIDED AZIMUTH TRACKING WHICH NORMALLY IS FAST ENOUGH TO TRACK JET AIRCRAFT, BUT IN THIS CASE WAS TOO SLOW TO BE RESORTED TO. TARGET WAS LOST IN THE N.E. AT A RANGE OF ABOUT FOURTEEN THOUSAND YARDS. THIS TARGET ALSO PRESENTED AN UNUSUALLY STRONG RETURN FOR AIRCRAFT BEING COMPARABLE IN STRENGTH TO THAT USUALLY RECEIVED FROM A COASTAL SHIP. THE OPERATOR INITIALLY IDENTIFIED TARGET AS A SHIP AND THEN REALIZED THAT IT COULD NOT BE A SHIP AFTER HE OBSERVED ITS EXTREME SPEED. OF FT. MONMOUTH AT A RANGE OF ABOUT FORTYTWO THOUSAND YARDS AT THE EXTREMELY UNUSUAL ELEVATION ANGLE OF THIRTEEN HUNDRED FIFTY MILS, APPROXIMATELY NINETYTHREE THOUSAND ALTITUDE. 3 ON SEPTEMBER ELEVEN, FIFTYONE, TWO SCR FIVE EIGHT FOUR RADAR SETS AT TEN FIFTY A.M. PICKED UP THE SAME TARGET NORTHEAST OF FT. MONMOUTH AT AN ELEVATION ANGLE
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.