Michigan.gov linky with the final report. Excerpts:
An Upper Peninsula bald eagle launched an airborne attack on a drone operated by a Michigan Department of Environment, Great Lakes, and Energy (EGLE) pilot last month, tearing off a propeller and sending the aircraft to the bottom of Lake Michigan.
DroneCARS? Nice!.Data from the flight records detailed the drone's final moments:
The eagle strike occurred 7:39.7 into the flight roughly four-tenths of a mile from King and 162 feet above the water
Its speed instantly dropped from 22 mph to 10. Within a half-second the flight record shows the beginning of downward spiral along with "excessive spinning" warnings
In the next 3.5 seconds the drone sent 27 warning notifications including one indicating a propeller had been torn off
Gaining momentum as it fell, its last communication came at 34 feet above the water, falling at 30 feet per second, or 20.4 mph.
Wrong. They're hiding the real reason, but we already know it.The attack could have been a territorial squabble with the electronic foe, or just a hungry eagle. Or maybe it did not like its name being misspelled. EGLE's drone team is considering steps to reduce the possibility of a repeat attack, including possibly using "skins" or other designs on the aircraft to make them look less like seagulls.