“A Pilot's View on Why Today's Unmanned Aerial Vehicles Cannot Explain Unidentified Aerial Phenomena” by Jose Americo Medeiros, NARCAP-Brazil, April 2010 (NARCAP)
Jose Americo Medeiros is a Brazilian UFO Magazine consultant, NARCAP investigator and former VASP Airlines commander:
http://www.narcap.org/documents/narcap_UAV-UAP_JoseAmer.pdf
Jose Americo Medeiros
(fatosufologicos.files.wordpress.com photo)