Documents / Official release
This FBI file serial from case 62-HQ-83894 holds several copies of Air Intelligence Requirements Memorandum Number 4, "Unconventional Aircraft." Major General C. P. Cabell, Director of Intelligence at Headquarters United States Air Force, issued the memorandum on 15 February 1949. It sets continuing Air Force requirements for information on unidentified flying objects, including "Flying Discs," and tells commands to send reports to Air Materiel Command at Wright-Patterson AFB. It also includes a detailed checklist covering sighting details, observers, radar data and physical evidence, and the FBI Director appears on its distribution list.
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.
“Sea”22 pages
RESTRICTED DEPARTMENT OF THE AIR FORCE HEADQUARTERS UNITED STATES AIR FORCE DmECTORATE OF INTELLIGENCE WASHINGTON 25, D. C. 15 February 1949 AIR INTELLIGENCE REQUIREMENTS MEMORANDUM NUMBER 4 UNCONVENTIONAL AIRCRAFT PART I - GENERAL 1. PURPOSE The purpose of this memorandum is twofold: a. To enunciate continuing Air Force requirements for informatlon pertaining t o sightings of unconventional aircraft and unldentifi.ed flying objects, including the so- called "Flying Discs.,, b. To establish procedures for reporting such information. 2. RESCISSION Department of the Army Collection Memorandum Number 7, dated 21 January 1948, and letter, CSGID 425.1, dated 25 March 1948, both subject as above, which have been transferred to Air Force agencies for action, are herewith super seded. 3. REPORTING a. General (1) As compl ete an answer to the requirements enunciated in Part Il, as may be procur able, should be dispatched by means of electrical transmissi on immediately after sightings, (2) Supplementary r eports should be forwarded as available by the most expeditlous means consistent with the importance of the information r eported. b. Major Air Commands (Over seas) and Air Attaches (1) Initial and supplementary cabled r eport s will be transmitted to the Director of Intelli gence, Headquarters United States Air Force. Cabl es wlll contain the phase, " Pass t o COMGENAMC WRIGHT- PATTERSON AFB, DAYTON, OHIO, ATTN: MCIAX0- 3.' ' RESTRICTED ce-,as2,AF ha ff 1K 9~-/t''/r
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Official release, from the pursue collection. The PDF is mirrored here; the original link is under it. 137 pages are in the text index: search them above, or from the library's search.