Project Blue Book Special Report No. 14 (Analysis of Reports of Unidentified Aerial Objects)
CIA-UAP-015 · page 140 of 312
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TABLE A29 EVALUATION OF ALL SIGHTINGS BY SIGHTING RELIABILITY GROUPS, 1950 Evaluation | EXCELLENT | GOOD | DOUBTFUL | POOR 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 | 4 | 0 | 4 | 8.2 | 0.0 | 8.2 | 3 | 0 | 3 | 5.1 | 0.0 | 5.1 | 18 | 5 | 23 | 14.6 | 4.1 | 18.7 | 8 | 2 | 10 | 10.7 | 2.7 | 13.4 1-Astronomical | 7 | 7 | 14 | 14.3 | 14.3 | 28.6 | 20 | 8 | 28 | 33.9 | 13.6 | 47.5 | 12 | 8 | 20 | 9.8 | 6.5 | 16.3 | 10 | 2 | 12 | 13.3 | 2.7 | 16.0 2-Aircraft | 4 | 1 | 5 | 8.2 | 2.0 | 10.2 | 6 | 5 | 11 | 10.2 | 8.5 | 18.7 | 17 | 9 | 26 | 13.8 | 7.3 | 21.1 | 12 | 0 | 12 | 16.0 | 0.0 | 16.0 3-Light Phenom. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 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 | 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 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 6-Insuffic. Info. | 4 | 0 | 4 | 8.2 | 0.0 | 8.2 | 1 | 0 | 1 | 1.7 | 0.0 | 1.7 | 25 | 0 | 25 | 20.3 | 0.0 | 20.3 | 19 | 0 | 19 | 25.3 | 0.0 | 25.3 7-Psychological | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 4 | 0 | 4 | 5.3 | 0.0 | 5.3 8-Unknown | 21 | 0 | 21 | 42.9 | 0.0 | 42.9 | 12 | 0 | 12 | 20.3 | 0.0 | 20.3 | 22 | 0 | 22 | 17.9 | 0.0 | 17.9 | 16 | 0 | 16 | 21.3 | 0.0 | 21.3 9-Other | 1 | 0 | 1 | 2.0 | 0.0 | 2.0 | 1 | 3 | 4 | 1.7 | 5.1 | 6.8 | 3 | 4 | 7 | 2.4 | 3.2 | 5.6 | 2 | 0 | 2 | 2.7 | 0.0 | 2.7 Total | 41 | 8 | 49 | 93.7 | 16.3 | 100. | 43 | 16 | 59 | 72.9 | 27.1 | 100. | 97 | 26 | 123 | 78.9 | 21.1 | 100. | 71 | 4 | 75 | 94.7 | 5.3 | 100. TABLE A30 EVALUATION OF ALL SIGHTINGS BY SIGHTING RELIABILITY GROUPS, 1951 Evaluation | EXCELLENT | GOOD | DOUBTFUL | POOR 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 | 5.5 | 0.0 | 5.5 | 5 | 1 | 6 | 12.2 | 2.4 | 14.6 | 2 | 2 | 4 | 3.4 | 3.4 | 6.8 | 2 | 1 | 3 | 4.7 | 2.3 | 7.0 1-Astronomical | 3 | 2 | 5 | 16.7 | 11.1 | 27.8 | 13 | 5 | 18 | 31.7 | 12.7 | 44.9 | 3 | 4 | 7 | 5.2 | 6.9 | 12.1 | 6 | 6 | 12 | 14.0 | 14.0 | 28.0 2-Aircraft | 3 | 1 | 4 | 16.7 | 5.5 | 22.2 | 7 | 0 | 7 | 17.1 | 0.0 | 17.1 | 2 | 4 | 6 | 3.4 | 6.9 | 10.3 | 4 | 3 | 7 | 9.3 | 7.0 | 16.3 3-Light Phenom. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 1 | 3 | 3.4 | 1.7 | 5.1 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 4-Birds | 0 | 0 | 0 | 0.0 | 0.1 | 0.0 | 0 | 1 | 1 | 0.0 | 2.4 | 2.4 | 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 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 6-Insuffic. Info. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 9 | 0 | 9 | 15.5 | 0.0 | 15.5 | 5 | 0 | 5 | 11.6 | 0.0 | 11.6 7-Psychological | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 1 | 2 | 1.7 | 1.7 | 3.4 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 8-Unknown | 7 | 0 | 7 | 38.9 | 0.0 | 38.9 | 9 | 0 | 9 | 21.9 | 0.0 | 21.9 | 25 | 0 | 25 | 43.1 | 0.0 | 43.1 | 11 | 0 | 11 | 25.6 | 0.0 | 25.6 9-Other | 1 | 0 | 1 | 5.5 | 0.0 | 5.5 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 0 | 2 | 3.4 | 0.0 | 3.4 | 5 | 0 | 5 | 11.6 | 0.0 | 11.6 Total | 15 | 3 | 18 | 83.3 | 16.7 | 100. | 34 | 7 | 41 | 82.9 | 17.1 | 100. | 46 | 12 | 58 | 79.3 | 20.7 | 100. | 33 | 10 | 43 | 76.8 | 23.2 | 100. TABLE A31 EVALUATION OF ALL SIGHTINGS BY SIGHTING RELIABILITY GROUPS, 1952 Evaluation | EXCELLENT | GOOD | DOUBTFUL | POOR 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 | 11 | 11 | 22 | 6.7 | 6.7 | 13.4 | 77 | 52 | 129 | 9.7 | 6.6 | 16.3 | 61 | 60 | 121 | 8.0 | 7.8 | 15.8 | 38 | 21 | 59 | 12.8 | 7.1 | 19.9 1-Astronomical | 17 | 9 | 26 | 16.4 | 4.9 | 15.3 | 110 | 50 | 160 | 13.9 | 6.3 | 20.2 | 109 | 37 | 146 | 14.2 | 4.8 | 19.0 | 24 | 25 | 49 | 8.1 | 8.4 | 16.5 2-Aircraft | 27 | 16 | 43 | 16.6 | 9.8 | 26.4 | 82 | 94 | 176 | 10.3 | 11.9 | 22.2 | 112 | 100 | 212 | 14.6 | 13.0 | 27.6 | 29 | 22 | 51 | 9.8 | 7.4 | 17.2 3-Light Phenom. | 2 | 0 | 2 | 1.2 | 0.0 | 1.2 | 7 | 8 | 15 | 0.9 | 1.0 | 1.9 | 12 | 9 | 21 | 1.6 | 1.2 | 2.8 | 5 | 0 | 5 | 1.7 | 0.0 | 1.7 4-Birds | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 4 | 1 | 5 | 0.5 | 0.1 | 0.6 | 7 | 3 | 10 | 0.9 | 0.4 | 1.3 | 2 | 1 | 3 | 0.7 | 0.3 | 1.0 5-Clouds, Dust, etc. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 8 | 10 | 18 | 1.0 | 1.3 | 2.3 | 4 | 3 | 7 | 0.5 | 0.4 | 0.9 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 6-Insuffic. Info. | 4 | 0 | 4 | 2.5 | 0.0 | 2.5 | 22 | 0 | 22 | 2.8 | 0.0 | 2.8 | 79 | 0 | 79 | 10.3 | 0.0 | 10.3 | 61 | 0 | 61 | 20.6 | 0.0 | 20.0 7-Psychological | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 0 | 2 | 0.3 | 0.0 | 0.3 | 18 | 4 | 22 | 2.3 | 0.5 | 2.8 | 6 | 3 | 9 | 2.0 | 1.1 | 3.1 8-Unknown | 60 | 0 | 60 | 36.8 | 0.0 | 36.8 | 228 | 0 | 228 | 28.9 | 0.0 | 28.8 | 120 | 0 | 120 | 15.6 | 0.0 | 15.6 | 47 | 0 | 47 | 15.9 | 0.0 | 15.9 9-Other | 7 | 0 | 7 | 4.3 | 0.0 | 4.3 | 31 | 6 | 37 | 3.9 | 0.8 | 4.7 | 27 | 2 | 29 | 3.5 | 0.3 | 3.8 | 0 | 12 | 12 | 0.0 | 4.1 | 4.1 Total | 128 | 35 | 163 | 78.5 | 21.5 | 100. | 571 | 221 | 792 | 72.1 | 27.9 | 100. | 549 | 218 | 767 | 71.6 | 28.4 | 100. | 212 | 84 | 296 | 71.6 | 28.4 | 100. 131