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Mission

Project Sign

9 declassified cases mention this, always in the body of the document rather than as an official record field. Documented incidents span 1947 to 1971.

4 agencies are involved: CIA, Department of Energy, Department of War, and FBI. The case files here include documents. None of the cases carry visible redactions.

Cases

File IDDateAgencyTypePages readExcerpt
CIA-UAP-0191971CIADocument19/19CIA-UAP-019 is a 19-page Australian Department of Defence, Joint Intelligence Organization minute paper (reference 3092/2) titled "Scientific and Intelligence Aspects of the UFO Problem", with a covering note signed by O.H. Turner, Hd. Nucl…
DOE-UAP-D0043/22/49Department of EnergyDocument25/25This document is a declassified transcript of a March 1949 U.S. Atomic Energy Commission memorandum forwarding minutes of a conference on "Aerial Phenomena" held 16 February 1949 at Los Alamos Scientific Laboratory. Convened amid a wave of…
DOW-UAP-D09312/10/48Department of WarDocument40/67Study No. 203, "Analysis of Flying Object Incidents in the United States," dated 10 December 1948, was prepared by the Air Intelligence Division (DI/USAF-ONI) and later declassified. It examines reported "flying saucer" sightings to judge w…
DOW-UAP-D0971948Department of WarDocument44/45This is the initial report on Project SIGN, sent on 23 April 1948 by Headquarters Air Materiel Command (Wright-Patterson Air Force Base) to the USAF Chief of Staff, attention Director of Intelligence, over the signature of Colonel H. M. McC…
Project Sign UFO file: Flying Discs, 19486/15/48Department of WarDocument28/28This 28-page file collects Air Force "Flying Discs" correspondence from February to June 1948, with a few earlier items, and several index forms name it "Project SIGN". A disposition form dated 27 February 1948 states that it is Air Force p…
UFO and flying saucer USAF intelligence file, 194811/8/48Department of WarDocument7/7This 7-page file is a Top Secret bundle from the Directorate of Intelligence, Headquarters USAF (T.S. Control Nos. 2-5300 to 2-5399, November 1948). A cover sheet dated 8 Nov 1948 from AFOIR-CO sends extracts from a USAFE teletype (TT 1524,…
DOW-UAP-D1001947-1948Department of WarDocument236/245A 245-page dossier of Air Materiel Command / Directorate of Intelligence correspondence on the Air Force's 1947-1948 "flying disc" investigation (later Project SIGN); 237 pages are legible and the rest are blank or redacted scans. Most of t…
UFO Flying Discs file: Twining letter, 194712/30/47Department of WarDocument28/28This 28-page file collects Army Air Forces and Air Materiel Command (AMC) correspondence on "Flying Discs" from August to December 1947. Its core is the 23 September 1947 letter from Lt. Gen. Nathan F. Twining, commanding AMC, to Army Air F…
FBI Flying Discs UFO file, Part 4 (1947-1949)N/AFBIDocument149/214Section 4 of file 62-HQ-83894 covers October 1947 to July 1949 and shows the FBI settling into a policy of not investigating flying discs. It includes reports from Portland (a sighting of 11 September 1947) and Anchorage (a pilot's near-col…

Related entities

Entities that appear together with this one in the same declassified cases.