The Hiro Action Sports Airframe is a quadcopter case designed with hard impact in mind: it envelops everything but the motors and propellers in hard plastic. The frame is a hollow shell made from a special military-grade polymer blend meant to survive all manner of aerial ultraviolence. It can fly through fire and land on water. It can slam into things and emerge entirely unscathed (except for the occasional broken propeller). And yes, it can take a round from a shotgun and keep on flying.
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Mark Szabo
First off: please stop calling these drones. It's an R/C helicopter. This one in particular isn't even capable of autonomous flight. Next, I'm failing to see how a broken propeller wouldn't spell the end for this copter. Props, when they're light enough to be effective with a quadcopter like this, tend to be pretty flimsy and weak. Fireproof? Sure, for a time. But slam this thing into a tree when it's flying through a forest fire updraft and it's going down
wired
frontseatdog
I'm surprised the design doesn't include encircled rotors, a la AR Drone. Seems that rotor protection would be desired.
reddit
Tom Bals
and this one to save lives http://alecmomont.com/projects/dronesforgood/