“Aviation Safety and Unidentified Aerial Phenomena:
A Preliminary Study of 600 cases of
Unidentified Aerial Phenomena (UAP)
Reported by Military and Civilian pilots”
by Dominique F. Weinstein,
NARCAP International Technical Specialist – France,
GEIPAN/CNES1 College of experts – France, March 2012
In 443 cases (74%), the UAPs (UFOs) are described as objects (42% circular shaped), according to Dominique F. Weinstein:
http://narcap.org/files/narcap_IR-4_DWeinstein_NEW_3-21-12.pdf