Documents / Case file
No summary written yet.
From the source: Release of 2026-07-10 Incident: 1948, Various. This file contains an initial report from the Air Materiel Command regarding Project Sign. Project Sign was a 1948-1949 U.S. Air Force program to investigate the nature and origin of unidentified flying objects (UFO). The report details 100 UFO sightings from 1947-1948. The file also contains an article excerpted from “The Aeroplane,” an aviation-focused periodical magazine published between 1911 and 1968, titled “The Biology of the Flying Saucer.”
Authority: NND927545• •I HEADQUARTERS AIR KATERI BL COWAND MClA/JCB/amb Wright-Patterson Air Force Base KCIA 2DjytAPH 0i948 SUBJECT, Projeot "BIOi" • TOs Chief of Staft United Statea ilr Poree Waahington 26, D. Co ATTN s Director ot Int-,lligenoe l. Thie ie an initial report on unidentified flying objecta aa direoted by Rq, USAY letter dated SO Deoember 1947, signed by General L. C. Craigie, subjeot1 •r1~Jng Diaea~. Qtarterly reports will be submitted beginning 1 July 1948. 2. Ae a reeult of thia letter, Pro~ot HT-304 was a.otiTated on 26 January 1948 and Technical Inatruotion 2185, dated 11 Pebruaiy 1948, wns published. Present ti.lea on Projeot •s10~• represent a oonaolida tion ot reports received directly by Hq, AMC and thoee forwa.rded by the Direotor ot Intelligence, USAF. ~. Schedules of activities of lighted night-flying adTertising blimps have been secured a.nd crosa-oheoked at thi.a Headquarters to consider them as a possible souroe ot incident nporta. 4. Inoloaure l represents a tabulation am breakdoWll of all available reports through l February 1948. 5o The following ia a series of interesting observation• that were noted when rev19Wing the many incident 0ase11 a. Rigll rate of olimb, aa well aa the apparent a.bi lity to remain mot1onleu or hover for a oonBiderable length of tiu o bo The objeot was described aa being oval, d1ac or 1auoer- t ehaped ~l times. o. Assooiated sound was preae?It ll tim.H o d. Reported sizes have varied from that of a 26-oent pitoe to 260 feet in diameter, and from the aise or a puraui t plane to tht ePulk of six B-29 airpl.&nea. , NND 927545
Not linked to a story yet.
Case file, from the pursue collection. The PDF is mirrored here; the original link is above. 45 pages are in the text index: search them above, or from the library's search.