On Thursday, April 21, 2016 at 6:54:42 PM UTC-4, Jonathan St. Cloud wrote:
I thought it was a fuel cell they were testing

I thought the wing pod was full of Li-Ion batteries. Automatically detaches when it overheats. Programmed to short and explode before it reaches the ground.

Seriously. Will Tesla brand Li-Ion batteries ever find their way into aircraft propulsion?