UFO Technical Report:
“A Preliminary Study of 300 cases of Unidentified
Aerial Phenomena (UAP) Reported by Military and Civilian pilots” by Dominique F. Weinstein, NARCAP International Technical Specialist, France,
September 2009 (NARCAP, Temecula, California)

Military and civilian pilots and crews have reported UFO sightings since the end of the 1940s, according to this UFO technical report:

http://www.narcap.org/reports/aircat_DWeinstein_300cases_9-09.pdf

(dandare.files.wordpress.com/narcap.org image)