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.
RESTRICTED (2) Supplementary written reports, prepared on AF Form 112, will be forwarded to the Director of Intelll.gence, Headquarter s Unlted States Alr Force. (3) Commandlng General, Air Materiel Command is authorized direct contact with major Alr Commands (overseas) and or ganizations under thelr control in connection with the development of information on this subject. c. Major Air Commands (ZI) (1) Reports will be forwarded dlrect to the Commanding General , Air Materiel Command, Wright-Patterson Air Force Base, Dayton, Ohio, Attn: MCIAXO-3 by installatlons r eceiv ing information pertaining to the requirements enunciated ln P art II. (2) Coples of such r eports may be supplied the Command Headquarters of the installation concerned. (3) A copy of all reports sent to Air Materiel Command in accordance with these instruc tions will be forwarded at the same time to the Director of Intelllgence, Headquarters United States Air Force. (4) Written r eports will be submitted on AF Form 112. (5) Commandlng Gener al, Air Materiel Command is authorized direct contact with major Air Commands (ZI) and or ganizations under their control in connection with the develop ment of information on this subject. d. Non-Air Force Agencies (1) Addressees otQer than those of the United States Air Force are r equested to forward r eports direct to the Commanding General, Air Materiel Command, Wright-Patterson Air Force Base, Dayton, Ohio, Attn: MCIAXO-3. (2) In order to reduce the time factor involved ln transmission of this type of information it is r equested that, wher ever communications facilltles permit, subordinate elements be authorized to communicate r eports direct to the Commanding General, Air Materiel Com mand. PART II - REQUIREMENTS General 1. Date of sighting. 2. Time of sighting (zonal by 24 hr. clock). 3. Where sighted (observer's posltion): a. Ground (1) City, town. (2) Distance and direction from city or town, road, lnter sect1on, etc. (3) From building (story), yard, etc. (4) Map coordinates (if feasible) showing latitude and longitude. - 2 - RESTRICTED
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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 137 pages are in the text index: search them above, or from the library's search.