When a small bird can shatter the windscreen of a helicopter temporarily blinding the pilot, I think it's pretty safe to assume a 2kg drone can cause some prett

When a small bird can shatter the windscreen of a helicopter temporarily blinding the pilot, I think it's pretty safe to assume a 2kg drone can cause some pretty significant damage; http://thescoopblog.dallasnews.com/2015/03/after-bird-blinds-dallas-police-pilot-co-pilot-calmly-takes-control-and-lands-helicopter.html/ http://thescoopblog.dallasnews.com/2015/03/after-bird-blinds...