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.
## CODES ## CODE 1. GENERAL a. Every column must have at least one entry. If no data are available for any column, the Y should be used. b. If a number in any column is used to enter data, then X qualifies the data as indicated in the Code for the specific column. CODE 25 DURATION UNITS CODE 28 LATITUDE CODE 32 LONGITUDE X X South latitude X East longitude Y Y Y 0 Days 0 0 1 Hours 1 1 2 Minutes 2 2 3 Seconds 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 9 9 9 CODE 42 MOVEMENT OF OBSERVER X Variable X Y Y 0 0 Wasn't moving 1 In car 1 Was moving - stopped 2 Outdoors 2 Was moving - didn't stop 3 In plane 3 4 In building 4 5 5 6 6 7 7 8 8 9 Other 9
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.