Originally Posted by
TheShadow
The radio-relay of data over remote areas could be provided by a Zephyr unmanned and autonomous drone. They can stay on-station for many months at a time at altitudes in excess of 75,000 feet.
It's operational now.
.
Anyone??
70,000 is during the day with the sun shining. It loses about 20,000ft overnight.
I wouldn't fancy its chances in the sort of weather 447 went through, and good luck finding any bits of it afterwards.