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This Black Vault compilation contains a September 1997 reply from the Office of the Assistant Secretary of Defense to John Greenewald's FOIA request, enclosing its UFO records. The enclosures include a Navy information sheet dismissing the Philadelphia Experiment and an Air Force UFO fact sheet listing 12,618 Project Blue Book sightings, 701 of them unidentified. They also include the National Academy of Sciences review endorsing the University of Colorado report and the concluding pages of a 1994 Air Force Roswell report attributing the wreckage to Project MOGUL.
“Police”7 pages
• AFSINC/ 11 August 1985 t.FO FACT Sl t:ET - ~ I 1\ J The Air For.ce investigation of UFOs began in 1948 and wa.s known as Project Sign. Later the name was changed to Project Grudge, and in 1953 it became Project Blue Book. Between 1948 and 1969, the Air Force investigated 12,618 reported sightings. The following is a statistiCal listing of reported UFO sight ings during the Air Force investigation: YEAR . 1947 1948 1949 1950 1951 1952 . 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 TOTAL LFO SICHTINGS I 91&7 - "'' TOTAL SIGHTINGS 122 156 186 210 169 I,501 509 487 545 670 1,006 627 390 557 591 474 399 562 887 I, 112 937 375 146 12,618 . Lt-.IIDENT IFlED 12 7 22 27 22 303 42 46 24 14 14 10 12 l4 13 15 14 19 16 32 19 3 I 701 Of these total sightings, II ,917 were found to have been caused by material objects (such as balloons, sateUites and aircraft), immaterial objects (such as lightning, reflections and other natural phenomena), astronomical objects (such as stars, planets, the sun and the moon), weather conditions and hoaxes. As indicated, only 701 reported sightings remain unexplained. On December 17, 1969, the secretory of the Air Force announced the termination of Project Blue Book •
Document, cited by the archive. The PDF is mirrored here; the original link is under it. 134 pages are in the text index: search them above, or from the library's search.