[MrBuddyCasino]

Just to be clear, I think the people flying drones are assholes. I'm not saying "don't make a such a big deal out of it". I'm just wondering what the actual danger is. Are the blades really that sensitive? I'd assume they would easily shred a drone to pieces and not be harmed in the process, because they already need to be quite tough to not tear apart under the centrifugal force during normal operation. But I have no idea, thats just my intuition.

[podunkPDX]

The issue is a drone, or debris from a drone, getting sucked into the engine intake. This debris can effectively turn the engine into a large amount of shrapnel, crippling the aircraft and its mission.

https://en.wikipedia.org/wiki/Foreign_object_damage

[MrBuddyCasino]

First good reply, no hand-waving, with real proof, thanks. Theres an actual picture of the possible damage a small bolt can cause on a helicopter turbine.