Analysis of 582 incidents involving unmanned aircraft in the U.S. airspace system as recorded by the US Federal Aviation Administration from August 21, 2015 to January 31, 2016 revealed that: 1) About 33% were classified as close encounters or occurrences where a danger or potential hazard was presented. 2) Roughly 33% of all reported close encounter incidents involved a multi engine jet aircraft. 3) 3 out of 5 incidents occurred within 5 miles of an airport, and 9 out of 10 incidents occurred a...