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.
PAGE THREE ATOR BELIEVED THE TARGET MUST HAVE ROSEN NEARLY VERTICALLY. TARGET FIXED ITS RISE IN ELEVATION AT AN ELEVATION ANGLE OF APPROX. FIFTEEN HUNDRED MILS, AT WHICH TIME IT PROCEEDED TO MOVE AT AN EXTREMELY RAPID RATE IN RANGE IN A SOUTHERLY DIRECTION. ONCE AGAIN THE SPEED OF THE TARGET EXCEEDED THE AIDED TRACKING ABILITY OF THE SCR FIVE EIGHT FOUR SET SO THAT MANUAL TRACKING BECAME NECESSARY. RADAR TRACKED THE TARGET MAXIMUM RANGE OF THIRTYTWO THOUSAND YARDS AT WHICH TIME TARGET WAS AT AN ELEVATION ANGLE THREE HUNDRED MILS. THE OPERATOR DID NOT ATTEMPT TO JUDGE THE SPEED IN EXCESS OF THE AIDED TRACKING RATE OF SEVEN HUNDRED MPH. THE WEATHER WAS FAIR WHEN THE OBSERVATION WAS MADE SEPTEMBER TENTH AND CLOUDY FOR THE SEPTEMBER ELEVENTH REPORT. UNQUOTE. ABOVE INCIDENT OBSERVED BY THREE WITNESSES WITH EXCEPTION OF FIRST INCIDENT ON SEPTEMBER TEN. ABOVE INFO FURNISHED BY REID AFTER AP- PROVAL OF G-TWO, GOVERNORS ISLAND, NY, WITH REQUEST THAT INFO BE CO- ORDINATED WITH AIR FORCE. REID ALSO ADVISED IN CONFIDENCE THAT ABOVE REPORT RECEIVED BY HIM AFTER CONSIDERABLE UNACCOUNTABLE DELAY. MC KEE END AAD PLS NK R 7 WA AS CC md Belmont DISC
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.