Project Blue Book Special Report No. 14 (Analysis of Reports of Unidentified Aerial Objects)
CIA-UAP-015 · page 142 of 312
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TABLE A86 EVALUATION OF UNIT 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 | 11.4 | 0.0 | 11.4 | 3 | 0 | 3 | 5.6 | 0.0 | 5.6 | 6 | 2 | 8 | 16.2 | 5.4 | 21.6 | 9 | 3 | 12 | 10.8 | 3.6 | 14.4 1-Astronomical | 6 | 5 | 11 | 17.1 | 14.3 | 31.4 | 18 | 8 | 26 | 33.3 | 14.8 | 48.1 | 6 | 4 | 10 | 16.2 | 10.8 | 27.0 | 12 | 1 | 13 | 14.4 | 1.2 | 15.6 2-Aircraft | 2 | 1 | 3 | 5.7 | 2.9 | 8.6 | 6 | 4 | 10 | 11.1 | 7.4 | 18.5 | 5 | 2 | 7 | 13.5 | 5.4 | 18.9 | 17 | 4 | 21 | 20.5 | 4.8 | 25.3 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 | 11.4 | 0.0 | 11.4 | 1 | 0 | 1 | 1.9 | 0.0 | 1.9 | 4 | 0 | 4 | 10.8 | 0.0 | 10.8 | 17 | 0 | 17 | 20.5 | 0.0 | 20.5 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 | 2 | 0 | 2 | 2.4 | 0.0 | 2.4 8-Unknown | 12 | 0 | 12 | 34.3 | 0.0 | 34.3 | 10 | 0 | 10 | 18.5 | 0.0 | 18.5 | 6 | 0 | 6 | 16.2 | 0.0 | 16.2 | 14 | 0 | 14 | 16.9 | 0.0 | 16.9 9-Other | 1 | 0 | 1 | 2.9 | 0.0 | 2.9 | 1 | 3 | 4 | 1.9 | 5.6 | 7.5 | 1 | 1 | 2 | 2.1 | 2.7 | 5.4 | 3 | 1 | 4 | 3.6 | 1.2 | 4.8 Total | 29 | 6 | 35 | 82.9 | 17.1 | 100 | 39 | 15 | 54 | 72.2 | 27.8 | 100 | 28 | 9 | 37 | 75.7 | 24.3 | 100 | 74 | 9 | 83 | 89.2 | 10.8 | 100 TABLE A87 EVALUATION OF UNIT 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 | 5.9 | 0.0 | 5.9 | 4 | 1 | 5 | 11.1 | 2.8 | 13.9 | 2 | 2 | 4 | 4.3 | 4.3 | 8.6 | 2 | 0 | 2 | 5.4 | 0.0 | 5.4 1-Astronomical | 3 | 2 | 5 | 17.6 | 11.8 | 29.4 | 12 | 4 | 16 | 33.3 | 11.1 | 44.4 | 3 | 3 | 6 | 6.4 | 6.4 | 12.8 | 3 | 5 | 8 | 8.1 | 13.5 | 21.6 2-Aircraft | 3 | 1 | 4 | 17.6 | 5.9 | 23.5 | 7 | 0 | 7 | 19.4 | 0.0 | 19.4 | 2 | 4 | 6 | 4.3 | 8.5 | 12.8 | 4 | 3 | 7 | 10.8 | 8.1 | 18.9 3-Light Phenom. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 1 | 3 | 4.3 | 2.1 | 6.3 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 4-Birds | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 1 | 1 | 0.0 | 2.8 | 2.8 | 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 | 8 | 0 | 8 | 17.0 | 0.0 | 17.0 | 6 | 0 | 6 | 16.2 | 0.0 | 16.2 7-Psychological | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 1 | 2 | 2.1 | 2.1 | 4.2 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 8-Unknown | 6 | 0 | 6 | 35.3 | 0.0 | 35.3 | 7 | 0 | 7 | 19.4 | 0.0 | 19.4 | 16 | 0 | 16 | 34.0 | 0.0 | 34.0 | 9 | 0 | 9 | 24.3 | 0.0 | 24.3 9-Other | 1 | 0 | 1 | 5.9 | 0.0 | 5.9 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 0 | 2 | 4.3 | 0.0 | 4.3 | 5 | 0 | 5 | 13.5 | 0.0 | 13.5 Total | 14 | 3 | 17 | 82.4 | 17.6 | 100 | 30 | 6 | 36 | 83.3 | 16.7 | 100 | 36 | 11 | 47 | 76.6 | 23.4 | 100 | 29 | 8 | 37 | 78.4 | 21.6 | 100 TABLE A88 EVALUATION OF UNIT 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 | 10 | 21 | 8.2 | 7.5 | 15.7 | 68 | 43 | 111 | 10.5 | 6.6 | 17.1 | 55 | 56 | 111 | 8.7 | 8.8 | 17.5 | 31 | 21 | 52 | 10.1 | 6.9 | 17.0 1-Astronomical | 17 | 8 | 25 | 12.7 | 6.0 | 18.7 | 48 | 43 | 141 | 15.1 | 6.6 | 21.7 | 78 | 32 | 110 | 12.3 | 5.1 | 17.4 | 46 | 26 | 72 | 15.0 | 8.5 | 23.5 2-Aircraft | 16 | 15 | 31 | 11.9 | 11.2 | 23.1 | 72 | 74 | 146 | 11.1 | 11.4 | 22.5 | 92 | 88 | 180 | 14.5 | 13.9 | 28.4 | 31 | 21 | 52 | 10.1 | 6.9 | 17.0 3-Light Phenom. | 2 | 0 | 2 | 1.5 | 0.0 | 1.5 | 7 | 8 | 15 | 1.1 | 1.2 | 2.3 | 12 | 9 | 21 | 1.9 | 1.4 | 3.3 | 5 | 0 | 5 | 1.6 | 0.0 | 1.6 4-Birds | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 4 | 1 | 5 | 0.6 | 0.2 | 0.8 | 3 | 3 | 6 | 0.5 | 0.5 | 1.0 | 2 | 1 | 3 | 0.7 | 0.3 | 1.0 5-Clouds, Dust, etc. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 5 | 7 | 0.3 | 0.8 | 1.1 | 1 | 2 | 3 | 0.2 | 0.3 | 0.5 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 6-Insuffic. Info. | 4 | 0 | 4 | 3.0 | 0.0 | 3.0 | 20 | 0 | 20 | 3.1 | 0.0 | 3.1 | 74 | 0 | 74 | 11.7 | 0.0 | 11.7 | 61 | 0 | 61 | 19.9 | 0.0 | 19.9 7-Psychological | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 0 | 2 | 0.3 | 0.0 | 0.3 | 18 | 4 | 22 | 2.8 | 0.6 | 3.4 | 6 | 2 | 8 | 2.0 | 0.7 | 2.7 8-Unknown | 44 | 0 | 44 | 32.8 | 0.0 | 32.8 | 171 | 0 | 171 | 26.3 | 0.0 | 26.3 | 86 | 0 | 86 | 13.6 | 0.0 | 13.6 | 43 | 0 | 43 | 14.1 | 0.0 | 14.1 9-Other | 7 | 0 | 7 | 5.2 | 0.0 | 5.2 | 26 | 5 | 31 | 4.0 | 0.8 | 4.8 | 19 | 2 | 21 | 3.0 | 0.3 | 3.3 | 0 | 9 | 9 | 0.0 | 2.9 | 2.9 Total | 101 | 33 | 134 | 75.4 | 24.6 | 100 | 470 | 179 | 649 | 12.4 | 27.6 | 100 | 438 | 196 | 634 | 69.0 | 31.0 | 100 | 225 | 80 | 305 | 73.8 | 26.2 | 100 133