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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.

Open the PDF at page 293 Original source ↗

“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…
CODE 56 DISAPPEARANCE BEARING
X - Disappeared suddenly
Y
0 - N
1 - NE
2 - E
3 - SE
4 - S
5 - SW
6 - W
7 - NW
8
9
CODE 57-58 ELEVATION
WITH RESPECT TO GROUND, DEGREES
X
Y
0
I
2
3
4
5
6
7
8
9
Initial
Variable
0-9
10-19
20-29
30-39
40-49
50-59
60-69
70-79
80-89
X
Y
0
1
2
3
4
5
6
7
8
9
Final
Variable
0-9
10-19
20-29
30-39
40-49
50-59
60-69
70-79
80-89
CODE 61 OBJECT ORIENTATION
Apparent inclination of principal
axis of object from horizontal
X
Y
0
1
2
3
4
5
6
7
6
9
Variable
•90 to ^0
«.6O to 30
4.30 to 10
4-10 to 0
0
0 to -10
-10 to -30
-30 to -60
-60 to -90
CODE 65 SERVICE
X
Y
0
1
2
3
4
5
6
7
8
9
Army
Navy
Marine
Air Force
Coast Guard
Merchant
Commercial Air
CAA
Gov't,
Other
. Contractor
CODE 62-63-64 CIVILIAN OCCUPATION
Dictionary of Occupational Titles,
Vol. II, 2nd Edition, pp. XIX-XXVI.
U.S* Department of Labor, Bureau of
Employment Security. U.S. Government
Printing Office, Washington, D. C , 1949.
See pp. XIX-XXVI.
CODE 66 DUTY
X
Y
0
1
2
3
4
5
6
7
8
9
Pilot
Weather tech.
Radar tech.
Tover op.
Balloon obs.
Tech. spec.
Guards, lookouts
Ground or deck crews
Navig. or bombardier
Other
294

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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.