This was one of the leading complaints in the testing of Wing in Australia IIUC.

Delivery worked, but neighbors complained that the drones sounded like they were powered by the chained souls of the thousand hungry damned. They've apparently worked hard to get the sound down to a mere hundred hungry damned. ;)

They should work on getting some vibrato in there so they sound like angels instead. ;)

Agree, when developing technology,they need to think more about the impact on others.

They are. Frangibility was a huge part of the resulting design.

You might say _impact on others_ was one of the most important things they had to address with the FAA.

You get at least as much noise from living in a city.

Have you heard a drone? even tiny ones are loud as shit. some guy in my neighborhood flies his drone occasionally and it's super annoying. I can't imagine how annoying these giant drones delivering packages will be.

Yes, I fly them professionally. The sound is related to the size, pitch, and profile of the propellers as well as the speed they are spinning.

The reason the guy down the street is probably loud is he is flying a race drone and hitting very high RPMs with it.

It seems that due to frangibility concerns, Project Wing uses much smaller motors and props now which requires a higher RPM to beat the air into submission.

Have you heard a siren? They're intended to be loud.

> Have you heard a siren? They're intended to be loud.

They're also intended to do things like saving people's lives, not delivering their Amazon orders.

Ambulance and fire engine sirens; police not so much. But that really has no bearing on how loud they are.

The type of noise is completely different from a drone.

Yes, in some parts of cities, and not everyone lives or wants to live in a city.