sarangan
Pattern Altitude
- Joined
- Jun 7, 2008
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- 1,904
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Andrew, CFI-I
It would take an awful lot of drones to add up to the environmental impact of even a single airliner.
Lawnmowers are 80-100dB according to various sources on google including yours. String trimmers are 110dB. These will operate on average as far away from you as that at the least. I couldn't find any sources for the M600 sound wise but not every delivery is going to be with a drone. Far from it. These will only be deliveries where it makes sense to do so and the customer wants to pay for the service. Not every package going to every home is going to be done by drone.
Just the decibels is not what bothers people. It is the unfamiliarity of the noise, how sustained it is and their own preconceived notion about the noise. My neighborhood has been complaining about airport noise even though lawn mowers, barking dogs and muscle cars create far more noise. My prediction is that consumers will stop being bothered by drone noise once they start getting their speedy deliveries.