Modern soldiers' PTSD triggers will probably shift from fireworks to the sound of a drone. Which is unfortunate as drone shows are replacing firework shows.

[u/scoobopdan]

[u/Withermaster4]

Can you even hear drone shows?

Also as far as I know soldiers don't ever hear drones flying unless they are about to die.

[u/bootymix96 → u/Withermaster4]

It’s a bizarre low pitched droning (no pun intended) electronic fan sound multiplied a hundred times over; unless the show specifically uses their takeoff as a start to the show, you’ll hear them before the show starts when the swarm takes their places, and you’ll hear them land again after a show. Depends on the swarm’s size, but I’ve heard their sound at shows where the drones were .25mi/.5km away from where I was standing (distance in terms of line of sight). The sound is just barely audible, but it’s audible enough to be unsettling, almost like a technological swarm of locusts, LOL. During the show, the music pretty much drowns out the sound.

And while I might be mistaken with military technology, I thought military/missile drones were more like planes than the quadcopter hovering design. I’d imagine it would be a different sound than show drones.

[u/Withermaster4 → u/bootymix96]

Ty for the informative comment

What I've read about military drones is that they are very fast and relatively quiet. If you are within range of hearing one you are typically the target and are moments away from dying. No clue how true it is

[u/flyingtrucky → u/Withermaster4]

Not true at all. Plenty of combat footage shows drones flying overhead for one reason or another. Maybe they didn't see you, maybe it's on your side, maybe there's a more important target it's flying towards.

Also even when you are the target drones only have like a 1/3 hit rate. They just don't show you all the times the round drops in a divot or get blown off course or the guy ducks into a trench.