Flight and noise

Is your feature request related to a problem? Please describe.

So, quadcopters, which are robots that can hover, aren't especially quiet. You can easily hear them buzzing when they are 10 meters above you. They are also very light, and fragile.

Current flying robots are both weighty (5.4kg for the manhack, 62.6kg for the aftershock inactive eyebot, 31.5 for the broken mainline one), going by inactive chassis). They are also quiet, they can surprise you when you walk around a corner.

Other large flier: (Hub 01 camspy, 30L (?)). The rest of the bots are .75L quadcopters.

We don't have reactionless drives, even in aftershock (:-p), so moving that much thrust for that much lift is going to be noticeable. Non-laminar air flow is noisy.

Solution you would like.

Some flying things, eventually, should use wing-lift, but that's currently not a thing. For stationary hovering? That should produce excessive amounts of noise.

Describe alternatives you have considered.

We could just scrub almost all larger flying objects, but that seems needlessly petty.

Additional context

https://hobbyhenry.com/are-drones-noisy-heres-what-the-neighbors-think/