Delivery drone buzz drives residents' complaints and a push for quieter rotors
Startups and Amazon say new propeller designs can cut perceived noise sharply, though regulators leave most of the response to operators and local leaders.
Residents living under delivery drone routes, such as those run by Amazon Prime Air and Walmart's partner Wing, are complaining about a high-pitched buzz that is more irritating than traffic noise. Researchers say drone sound stands out because it is novel, intrusive and frequent, and complaints are expected to grow as the sector expands. Startups are responding with quieter designs: London-based Greenjets claims its enclosed-propeller system cuts noise by at least two thirds, while Sharrow Engineering is developing tipless, "ultra-quiet" rotors. Amazon says its newest propellers produce almost half the perceived sound of the previous generation, and regulators in the US say community concerns fall mainly to operators and local leaders.
Why it matters
For people living under delivery drone routes, the issue is a high-pitched buzz that they find more irritating than traffic noise, and researchers expect complaints to rise as the sector grows. Quieter propellers are the main answer on offer so far, and the claimed reductions differ in size and in how they are measured. Under current US guidance, the work of managing those complaints rests largely with the companies flying the drones and with local community leaders.
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