Documents / FOIA release
This CIA-released copy of Project Blue Book Special Report No. 14 is dated 5 May 1955 and comes from the Air Technical Intelligence Center at Wright-Patterson Air Force Base. It is a statistical analysis of about 4,000 unidentified aerial object reports from 1947 through 1952, coded onto IBM punched cards with the help of a panel of scientists. The report concludes that such objects were highly unlikely to be technological developments beyond present-day scientific knowledge. It also found no valid evidence of physical matter.
“Midwest”11 pages
# Approved For Release 2005/07/20 : CIA-RDP81R00560R000100060001-5 Evaluation NORTH AMERICA UNITED STATES CANADA ALASKA Number Per Cent Number Per Cent Number Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0-Balloon 193 126 319 9.5 6.2 15.7 184 121 305 9.6 6.3 15.9 3 3 6 6.2 6.2 12.4 2 1 3 6.7 3.3 10.0 1-Astronomical 255 197 452 12.5 9.7 22.2 237 182 419 12.4 9.5 21.9 9 5 14 18.7 10.4 29.2 5 0 5 16.7 0.0 14.7 2-Aircraft 254 191 445 12.5 9.4 21.9 245 188 433 12.8 9.8 22.6 5 0 5 10.4 0.0 10.4 3 0 3 10.0 0.0 10.0 3-Light Phenom. 29 17 46 1.4 0.8 2.2 27 17 44 1.4 0.9 2.3 0 0 0 0.0 0.0 0.0 1 0 1 3.3 0.0 3.3 4-Birds 10 9 19 0.5 0.4 0.9 10 8 18 0.5 0.4 0.9 0 1 1 0.0 2.1 2.1 0 0 0 0.0 0.0 0.0 5-Clouds, Dust, etc. 2 7 9 0.1 0.3 0.4 2 6 8 0.1 0.3 0.4 0 0 0 0.0 0.0 0.0 0 0 0 0.0 0.0 0.0 6-Insuffic. Info. 215 0 215 10.6 0.0 10.6 205 0 205 10.7 0.0 10.7 4 0 4 8.3 0.0 8.3 2 0 2 6.7 0.0 6.7 7-Psychological 35 8 43 1.7 0.4 2.1 34 8 42 1.8 0.4 2.2 1 0 1 2.1 0.0 2.1 0 0 0 0.0 0.0 0.0 8-Unknown 395 0 395 19.4 0.0 19.4 359 0 359 18.7 0.0 18.7 14 0 14 29.2 0.0 29.2 13 0 13 43.3 0.0 43.3 9-Other 74 17 91 3.6 0.8 4.5 67 16 83 3.5 0.8 4.3 2 1 3 4.2 2.1 6.3 3 0 3 10.0 0.0 10.0 MEXICO HAWAII Evaluation Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0-Balloon 1 0 1 8.3 0.0 8.3 3 1 4 10.7 3.6 14.3 1-Astronomical 1 2 3 8.3 14.7 25.0 3 8 11 10.7 28.6 39.3 2-Aircraft 0 1 1 0.0 8.3 8.3 1 2 3 3.6 7.1 10.7 3-Light Phenom. 1 0 1 8.3 0.0 8.3 0 0 0 0.0 0.0 0.0 4-Birds 0 0 0 0.0 0.0 0.0 0 0 0 0.0 0.0 0.0 5-Clouds, Dust, etc. 0 0 0 0.0 0.0 0.0 0 1 1 0.0 3.6 3.6 6-Insuffic. Info. 2 0 2 16.7 0.0 16.7 2 0 2 7.1 0.0 7.1 7-Psychological 0 0 0 0.0 0.0 0.0 0 0 0 0.0 0.0 0.0 8-Unknown 4 0 4 33.3 0.0 33.3 5 0 5 17.9 0.0 17.9 9-Other 0 0 0 0.0 0.0 0.0 2 0 2 7.1 0.0 7.1 </td
FOIA release, from the cia-readingroom collection. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 312 pages are in the text index: search them above, or from the library's search.