Documents / Official release

65 HS1-834228961 62-HQ-83894 Serial 164

Federal Bureau of Investigation · 137 pages · text from the file's own layer

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.

Open the PDF at page 38 Original source ↗

“Sea”22 pages

  • p. 4 …s aircraft. (4) Latitude and longitude.' c . Sea (1) Latitude and longitude. (2) Proximity to land…
  • p. 12 …s aircraft. (4) Latitude and longitude. c. Sea (1) Latitude and longitude. (2) Proximity to land…
  • p. 19 …contact with major Al.r Commands (over seas) and organizations under their control in connection with…
  • p. 20 …s aircraft. (4) Latitude and longitude. c. Sea (1) Latitude and longitude. (2) Proximity to land…
  • p. 28 …s aircraft. (4) Latitude and longitude. c. Sea (1) Latitude and longitude. (2) Proxlmity to land…
  • p. 35 …direct contact with major Air Commands (over seas) and organizations under their control in connection with…
  • p. 36 …s aircraft. (4) Latitude and longitude. c. Sea (1) Latitude and longitude. (2) Proxlmity to land…
  • p. 43 …direct contact with major Air Commands (over seas) and organizations under their control in connection with…
  • p. 44 …s aircraft. (4) Latitude and longitude. c . Sea (1) Latitude and longitude. (2) Proximity to land…
  • p. 52 …s aircraft. (4) Latitude and longitude. c. Sea (1) Latitude and longitude. (2) Proximity to land…
  • p. 58 …Major Air Commands (Over seas) and Air Attaches (1) Initial and supplementary cabled r eports will…
  • p. 60 …s aircraft. (4) Latitude and longitude. c. Sea (1) Latitude and longitude. (2) Proxlml.ty to…
  • p. 68 …s aircraft. (4) Latitude and longitude. c. Sea (1) Latitude and longitude. (2) Proximity to land…
  • p. 74 …Major Air Commands (Over seas) and Air Attaches (1) Initial and supplementary cabled r eport s…
  • p. 76 …s aircraft. (4) Latitude and longitude. c. Sea (1) Latitude and longitude. (2) Proximity to land…
  • p. 84 …s aircraft. (4) Latitude and longitude. c. Sea (1) Latitude and longitude. (2) Proximity to land…
  • p. 92 …s aircraft. (4) Latitude and longitude. c. Sea (1) Latitude and longitude. (2) Pr oximity to…
  • p. 100 …s aircraft. (4) Latitude and longitude . c . Sea (1) Latitude and longitude . (2) Pr oximity to…
  • p. 108 …s aircraft. (4) Latltude and longitude. c. Sea (1) Latitude and longit ude. (2) Proximity to…
  • p. 116 …s aircraft. (4) Latitude and longitude. c. Sea (1) Latitude and longitude. (2) Proximity to land…
  • p. 124 …s aircraft. (4) Latitude and longitude. c. Sea (1) Latitude and longitude. (2) Proximity to land…
  • p. 132 …s aircraft. (4) Latitude and longitude. c. Sea (1) Latitude and longitude. (2) Proximity to land…
RESTR I CTED
17. Air ducts.
a. Slots.
b. Duct openings.
18. Speed - M.P.H.
19. Sound.
a. Continuous whine or buzz.
b. Roar, whistle, w};loosh.
c. Intermittent.
20. Manner of disappearance.
a. Explode.
(1) Poss1b1Uty of fragments.
(2) Other physical evidence.
b. Faded from view.
c. Disappeared behind obstacle.
Relattve to the Observer
1. Name of observer.
2. Address.
3. Occupation.
4. Place of business.
a. Employer or employee.
6. Pertinent hobbies.
a. Is observer amateur astronomer, pilot, engineer, etc.
b. Length of time engaged in hobby (experience).
6. Ability to determine:
a. Color.
b. Speed of moving objects.
c. Size at distance.
7. Reliablllty of observer.
a. Sources.
RESTRICTED

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About this file

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.