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UAP Indications Analysis 1945-1975 Military and Public Activities

L. J. Hancock, I. M. Porritt, S. Grosvenor, L. Cates, J. Pierson

This paper provides an assessment of indicators associated with UAP reports, described initially as Unidentified Flying Objects (UFOs) and contemporarily as Unidentified Anomalous Phenomena (UAP), included in the Scientific Coalition for UAP Studies (SCU) Activity Pattern Study. The Activity Pattern Study and Indications Analysis for Military and Public Activities was conducted in association with the Pattern Recognition and Indications Analysis for the US Atomic Warfare Complex. The Activity Pattern study analyzed UAP incidents in the military and public between 1945 and 1975. A set of 597 UAP reports from this period were collected from the US Air Force’s multi-decade UFO investigations (including Project Bluebook), and other select sources. Seven UAP intention scenarios were evaluated in this work: 1) Survey - Human Behavioral Studies, 2) Recognition, 3) Contact, 4) Communication, 5) Collaboration, 6) Unilateral Assistance, and 7) Unilateral Exploitation. The UAP Activity Pattern Study indicated

a shift from daytime to nighttime reports over the period of the study, with a shift in focus from intrusive activity at military installations to close approaches to small groups of observers within the general public. A list of indicators was created and mapped to the seven major scenarios for assessment. Based on the analysis of indications for UAP incidents included for this study, recognition of intelligent action and advanced UAP technology was indicated as the most probable scenario for the early years of the study, with a transition to Human Behavioral Studies occurring in later years. There was some indication of contact intention, with less likelihood of Communications, Collaboration, Unilateral Assistance or Unilateral Exploitation.


The four papers on patterns and indications conducted by the SCU Intentions Study team are inter-related and included in a common database of 1163 UAP reports, available at




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