&gt; Unless it was an industrial-sized drone, I don&#x27;t see it doing much damage to a helicopter. Helicopter blades carry an enormous amount of energy in them.<p>It was a DJI Phantom 3 Advanced [1]. Those weigh 2.8 pounds [2]. A 3 pound red-tailed hawk can take down an AH-1W Cobra attack helicopter [3]. I doubt that a 2.8 pound drone is less dangerous than a 3 pound bird, or that a military attack helicopter is significantly more delicate than civilian helicopters.<p>[1] <a href="http:&#x2F;&#x2F;arstechnica.com&#x2F;tech-policy&#x2F;2015&#x2F;12&#x2F;drone-nearly-collides-with-helicopter-operator-gets-caught&#x2F;" rel="nofollow">http:&#x2F;&#x2F;arstechnica.com&#x2F;tech-policy&#x2F;2015&#x2F;12&#x2F;drone-nearly-coll...</a><p>[2] <a href="http:&#x2F;&#x2F;store.dji.com&#x2F;product&#x2F;phantom-3-advanced" rel="nofollow">http:&#x2F;&#x2F;store.dji.com&#x2F;product&#x2F;phantom-3-advanced</a><p>[3] <a href="http:&#x2F;&#x2F;www.10news.com&#x2F;news&#x2F;report-bird-strike-caused-deadly-helicopter-crash" rel="nofollow">http:&#x2F;&#x2F;www.10news.com&#x2F;news&#x2F;report-bird-strike-caused-deadly-...</a>