uk-drone-rules-require-safety-tests

Regulators hope that this will lead to fewer drones flying over airports and otherwise causing havoc in British skies. A drone weighing around 400 g (0.88lbs) can crack the windscreen of a helicopter, while all but the heaviest drones will have trouble cracking the windscreen of an airliner (and then only at speeds you'd expect beyond the airport). While you might not cause as much chaos as some have feared, you could still create a disaster using a compact drone. It's nothing new to register drones, of course, and it doesn't appear to have dampened enthusiasm in the US.