Project Blue Book Special Report No. 14: Analysis of Reports of Unidentified Aerial Objects

LIST OF ILLUSTRATIONS
(Continued)
Paiie
Figure 14 Distribution of Object Sightings by Months Among the Eight Duration
Groups for All Years 30
Figure 15 Distribution of Object Sightings by Shape of Object(s) Reported With
Evaluation Distribution for Each Shape Group -31
Figure 16 Distribution of Object Sightings by Reported Speed of Object(s) With
Evaluation Distribution for Each Speed Group 32
Figure 17 Distribution of All Sightings by Observer Location for All Years and Each Year 33
Figure 18 Comparison of Known and Unknown Object Sightings by Color, 1947-1952 . 34
Figure 19 Comparison of Known and Unknown Object Sightings by Number of Objects
per Sighting, 1947-1952 . 35
Figure 20 Comparison of Known and Unknown Object Sightings by Speed, 1947-1952 36
Figure 21 Comparison of Known and Unknown Object Sightings by Duration, 1947-1952 37
Figure 22 Comparison of Known and Unknown Object Sightings by Shape, 1947-1952 38
Figure 23 Comparison of Known and Unknown Object Sightings by Light Brightness, 1947-1952 39
Figure 24 Comparison of Monthly Distribution of Object Sightings Evaluated as Astronomical
Versus Total Object Sightings Less Astronomical 40
Figure 25 Comparison of Monthly Distribution of Object Sightings Evaluated as Aircraft
Versus Total Object Sightings Less Aircraft 41
Figure 26 Comparison of Monthly Distribution of Object Sightings Evaluated as Balloon
Versus Total Object Sightings Less Balloon . . . . . . . . . 42
Figure 27 Comparison of Monthly Distribution of Object Sightings Evaluated as Insufficient
Information Versus Total Object Sightings Less Insufficient Information 43
Figure 28 Comparison of Monthly Distribution of Object Sightings Evaluated as Other
Versus Total Object Sightings Less Other 44
Figure 29 Comparison of Monthly Distribution of Object Sightings Evaluated as Unknown
Versus Total Object Sightings Less Unknown 45
Figure 30 Characteristics Profiles of Object Sightings by Total Sample, Known Evaluations,
, and Individual Known Evaluations, With Unknown Evaluations Superimposed -46
Figure 31 Frequency of Object, Unit, and All Sightings Within the U. S., 1947-1952, by
Subdivisions of One Degree of Latitude and Longitude . 47
Figure 32 Distribution of Object Sightings by Evaluation for the Twelve Regional Areas of
the U. S., With the Strategic Areas Located 48
Figure 33 Comparison of Evaluation of Object Sightings in the Strategic Areas of the
Central East Region • 49
Figure 34 Comparison of Evaluation of Object Sightings in the Strategic Areas of the
Central Midwest Region ' 50
Figure 35 Comparison of Evaluation of Object Sightings in the Strategic Areas of the
Central Farwest Region 51
Figure 36 Comparison of Evaluation of Object Sightings in the Strategic Areas of the
South Midwest Region 52
Figure 37 Comparison of Evaluation of Object Sightings in the Strategic Areas of the
South West Region . . . . . . . ' . 53
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