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Project Blue Book Special Report (second copy)
Internet Archive · 309 pages · text from the file's own layer
This is Project Blue Book Special Report No. 14, "Analysis of Reports of Unidentified Aerial Objects," Project No. 10073, dated 5 May 1955. The study reduced about 4,000 sighting reports received by the U.S. Air Force between June 1947 and December 1952 to IBM punched cards and analyzed them statistically, including chi square tests comparing knowns with unknowns. It concludes that the reports very probably do not represent technological developments beyond present scientific knowledge, and it notes that no case produced physical evidence.
“Works”18 pages
- p. 3 …Questionnaire 4
Coding System and Work Sheet 6
Identification of Working Papers 7
Evaluation of Individual…
- p. 10 …During the course of the work, the number of reports sub-
mitted for analysis and evaluation…
- p. 13 …On the basis of this
analysis, plus the experience gained in working with past reports, the…
- p. 14 Coding System, and Work Sheet
The reduction of non-numerical data to numerical form is mandatory…
- p. 15 /v
Identification of Working Papers
The actualjreduction of d.ata to IBM jaujijchedj^c_a.rd…
- p. 16 …most representative report from each MULTIPLE
OBSERVATION. (2) The questionnaire, work
sheet, and IBM card representing…
- p. 17 …report for each phenomenon. (2) The
questionnaire, work sheet, and IBM card
representing a report for…
- p. 18 …Using one column of the IBM
card, and the correlated working papers, the code for this…
- p. 21 …This work was done
at ATIC, periodically, as reports became ready.
During an identification conference, each…
- p. 84 …only
of persons previously associated with the work. Using all the UNKNOWNS
reports available at ATIC…
- p. 97 …for a radio
station was driving to work from his home when he noticed an object…
- p. 101 …This feeling of surfeit was
universal among the personnel who worked on this project, and continually…
- p. 261 APPENDIX B
WORKING PAPER FORMS
M
i
255 and 256
- p. 262 …Codes for Work Sheet
Exhibit B5. Work Sheet .
Exhibit B6. Codes for Card Bible
Exhibit B7…
- p. 289 t
EXHIBIT B4
CODES FOR WORK SHEET
ft
289 and 290
- p. 295 fc! EXHIBIT B5
WORK SHEET
• 1
297 and 298
- p. 296 Observer's
Data
Sheet
Question
WORK SHEET
Punched
Card
Column Code Description
2
3
h Serial…
- p. 299 …These cards (and the corresponding WORK SHEETS) contain data from
several sources. Columns referenced to the…
TABLE XI CHI SQUARE TEST OF REVISED KNOWNS VERSUS UNKNOWNS
ON THE BASIS OF DURATION OF OBSERVATION
Duration of
Observation
Number of
KNOWNS
Adjusted
Number of
KNOWNS (K)
Number of
UNKNOWNS (n)
X 2 ,
K
0.
1.
1.
3.
2.
2.
1.
0.
52
56
2 3
90
31
9 4
16
72
5 sec or less
6-10 sec
11.-30 sec
31-60 sec
61 sec-5 min
6 min-30 min
Over 30 min
Not stated
92
47
118
92
252
259
91
335
Total 1286
31
16
40
31
85
87
31
113
434
27
21
33
42
99
71
37
104
434 14. 34
Degrees of freedom
5%
1%
14. 1
18. 5
73
gfc :-•
About this file
Report, cited by the archive. The PDF is mirrored here; the original link is under it. 309 pages are in the text index: search them above, or from the library's search.