Energy of a falling drone (off topic posts extracted from another thread)

[Don Testme]

They do look promising but the Walmart parachutes don't meet the Safety Assurance standards set out by Transport Canada and FAA to allow flight "over people". I would never put on a no-name chute that detects falling during regular drone flight, even the approved chutes have been know to go off accidentally during vigorous flight causing the chute to get caught up in the drone props and it falls like a rock anyways because the chute doesn't deploy properly.

I'm not suprised.

 

[123taff]

Perhaps mainly for commercial type flights where one has permission to fly over people / crowds / property.
Obviously legislation is probably required to allow such flights with certain safety measures.
A parachute recovery system, and probably propeller cages or ducted props would possibly be two of those measures.

And that makes perfect sense!