Documents / FOIA release
This is a US Air Force UFO fact sheet dated 11 August 1985. It traces Air Force UFO investigations from Project Sign in 1948 through Project Grudge to Project Blue Book, which examined 12,618 sightings, 701 of which remained unexplained. A table lists the totals for each year from 1947 to 1969. The sheet says Blue Book ended in 1969, based partly on the University of Colorado study and the National Academy of Sciences review, and found no threat and no evidence of extraterrestrial vehicles.
S'ientifi: ~tudv or Un1denttf1ed Fl in Ob ects. Study conducted by tne !Jniversity of Colorado under contract F4~ 20-76-C-0035. T~ree volumes. 1,465 p. 68 plates. Photoduplicated hard copies or the official ;e~~~t m3Y h~ ordered fo~ $E per volume;-$18 the set of three, as AD GS0:97~, AD 680:976, and AD 680:977. ~eview of Universitv of Colo~ado ~epo~t on Unidentified Flving Objects. Review of report by a panel or the National Academy nf Sciences. National Academy of Sciences, 1969, 6p. Phot~~uplicat~d h~rd copie~ may h~ ordered for $3 as AD 688:541.
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FOIA release, from the osd collection. The PDF is mirrored here; the original link is above. 3 pages are in the text index: search them above, or from the library's search.