The technical term is glide :)
On loss of power the drone glided to earth
What we don’t know is the glide ratio
I have these questions.
These are programed to return to base if they lose connection. How was this changed?
These are not able to be tracked by radar. How was it found?
This is not damaged. who and how did they land it?
I can not tell you how big a deal this is on so many levels. The communication encryption in these is priceless. If someone has cracked that it is going to be a very expensive retrofit on many levels.
I have to believe someone in the ISI,Egypt or the White House has provided the Russians with this info.