This web page is about civilian organizations that analyze reports on interactions with UAPs. Unlike generic wide-ranging think tanks, for example the RAND corporation, these civilian organizations focus in on UAPs.
National Aviation Reporting Center On Anomalous Phenomena
"NARCAP has investigated, documented, and analyzed aviation safety-related observations and incidents that may involve Unidentified Aerial Phenomena, UAP, since 1999."
"A Very General Overview of the History of UAP and Aviation"
https://www.narcap.org/blog/advisoryforpilots, by Director of Research, Ted Roe, June 2019
"Aircrews and Air Traffic Controllers (ATC) have been reporting UAP and UFOs throughout the history of powered flight."
" Many of these observations and incidents involve safety factors. While the government, usually the military, has had a passing interest in UAP the data has moved away from the aviation community and safety planners, leaving no support for aircrews and ATC."
"Although the US NAVY has recently implemented a reporting plan to address pilot complaints of safety factors involving UAP, that information is not available to safety planners. The Federal Aviation Administration, FAA, offers no leadership or guidance to civil or commercial aviation and suggests that aircrews and ATC that want to report UAP observations and incidents can do it to somewhere other than the FAA or the US government."
"Some UAP Characteristics:"
"1. UAP appear as an unexpected and unusual light (UAP/Light), or object (UAP/Object), or an object with lights attached or nearby."
"2. UAP can appear individually and they can appear in groups."
"3. UAP can vary in size from a foot across to a mile or more."
"4. UAP can appear at any altitude, during any phase of flight, and in controlled/ restricted airspace like airports. UAP can appear during any weather and at any hour."
"5. UAP can be exceptionally mobile and can perform seemingly instantaneous transits, extreme accelerations, acute angle turns, sudden stops, and they can hover in place for long durations. UAP appear to "fly" in a manner that is inconsistent with fluid dynamics. Their movements can appear "odd" and can be entirely unexpected and startling for witnesses."
My Comments
In my opinion, the UAP characteristics listed above are similar to descriptions of the Nimitz incident Tic Tacs.
NARCAP presents a significant amount of evidence UAPs exist and they have non-human behavior.
MUFON
"The Mutual UFO Network (MUFON) is a US organization composed of volunteers who investigate UFO sightings."
National UFO Reporting Center (NUFORC)
http://www.nuforc.org/index.html
NUFORC is a US organization that investigates UFO sightings and alien contacts.