Whether it's effective or not, what's interesting to me is that somehow the FAA decided to set the weight limit for "dangerous" drones at 0.55 lbs. Obviously there has to be some limit, because flyweight versions of these things are being sold in the thousands now as household toys. But was that based on any kind of testing, or are they just putting it in the "small bird strike" category and assuming it won't be a problem?
What's the result of a helicopter or fixed wing aircraft smacking into a drone that weighs a quarter pound?