posted on Dec, 14 2011 @ 01:59 PM
My hunch is this:
You must admit that it is very likely that comm will drop out from time to time. It's a long chain of radio signals from the US to the mid east.
The software likely has code to put the drone in a wings level gradual circle if communication is lost. And if the receiver fails the drone will
circle until the tanks empty. Then the batteries will maintain the power to allow the drone to circle down to a mild crash.
I'll bet the code is being changed as we speak.
The second drone was engine problems. It happens.
edit on 14-12-2011 by samkent because: add more