Documents / Report
This 10 December 1948 intelligence analysis, marked declassified, examines about 210 reported flying object incidents in the United States. It sorts the reports into disk-shaped objects, cigar-shaped objects and balls of fire, and weighs domestic misidentification against a possible Soviet origin, with particular attention to German flying-wing designs. It concludes that some type of flying object has been observed but that its identification and origin cannot be determined. Appendices plot the sightings, give selected incident reports and describe flying-wing aircraft.
From the source: Release of 2026-07-10 Incident: 12/10/48, Virginia. This file contains a U.S. Air Force (USAF) Air Intelligence Division study, “Analysis of Flying Object Incidents in the United States,” Study No. 203, dated 12/10/1948. The analysis includes an assessment of various reported unidentified flying object (UFO) incidents and theories to account for their nature and origin. Overall, the study assesses that “it appears that some object has been seen; however, the identification of that object cannot be readily accomplished.” The study offers that two “reasonable” origins might account for the phenomena: technologies of a domestic or foreign origin. It also suggests that, if foreign, it is prudent for the United States to assume that UFO observations are attributable to scientific, military, or intelligence activities of the Soviet Union, and, in that case, to take seriously the threat such objects may pose. The file also contains contemporary UFO reports and examples of experimental “flying wing” type aircraft planforms that might account for certain commonly reported UFO characteristics. AARO Comment: This file appears to be an earlier draft version of the file contained in DOW-UAP-D094, whose content is substantively similar.
APPEiDIX llAlf ANALYSIS OF FLYilTG OBJECT IUCIDENTS Ilf Tlm U.S. AND HTPOTHETIOAL TAOTICS l'?iPLOXED l. Introduction. To formulate tho possible tactic• of jects reported ovor the U.S. assumes from the outGet that firm conclu sions have beon reached on both the exiotonce pnd origin of the r oported flying objects. The current status of information on such incidents and overall analys1o doec not cllow subotentiation for auoh concluaione. However. the lack of such firm concluaions points to the necessity for an immodiato and sound statisticnl annl7oiA of every nepect of the aituo. tion and doeo not proclude a concurrent examination of the reported in cidents to develop explanatione of their possible tactioe. The latter will be useful at oome future date ohould tho exictencea.ndoririn of the flying objocts be definitely e•tabliahed. Theroforc , tho followint; anolyais of availablo information ii advanced in order to praeent evi dence on the actunl exhtenoa of somo tn,e fl7ill(; object and to relate samo to tactical purposen for which the objects are pose1bly deeiEned. The foJ.lovin,:; dhcueslo.n mu.at be cone1derod a provi111onal o.nalycie, pend1n6 a further dotailod analyaio of all aspects of the problem. 2. Somn J1.1rpoota RMIU'tllM F171na ObJeot Incld~nt4. A. cureory cxaM1nat1on of evidence on reported incident ■ haa been mnde o.nd it 1• po111ble to cite certain genorAlltiee which it npp~nre MQ.1 be borne out when detailed a.nal71os ha~• been completed. Amo~ the 1noidentB reported there are m&IJ.1' otatemonta by reliable and experienced pereone which t~nd to confirll that fl7lng ob j~ote havo been aeon. The detcription of ouch objeot~ 1nem• to fall rou«hl7 into thre• catogor1$ ■: (1) 811••r dieke or balls. &pproxil0at1n& - a Horton will«$ tn>e aircraft; (a) Dal.le Qf fire ot Tnrlous colore and lntenei\101; (3) Ott r or p noil-shaped object, atmtl~r i~ apponronce \o V-2 type rockets in horliontal flight. ihe numbere of configurations 1
Report, from the pursue collection. The PDF is mirrored here; the original link is above. 67 pages are in the text index: search them above, or from the library's search.