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August 19 news, the United StatesE-commerceGiantAmazonofDronesAs the company seeks federal permission to expand its drone delivery program, once seen as a futuristic fantasy, it faces a daunting challenge: drones are too noisy.

Drones are generally noisy when in operation, as anyone who has ever tried to relax on the beach and encountered a drone disturbing them can relate to.

Australians have complained for years about the noise made by Alphabet's Wing drones for food delivery services there, and in Nepal, local residents complained that drones Sherpas planned to use to clean up trash on Mount Everest sounded like "a swarm of bees."

During an Amazon drone delivery trial in College Station, Texas, local orthodontist John Case recently told the media that the Amazon delivery drone he encountered "sounded like a giant beehive."

“You could tell it was coming because it was so loud,” Case said.

Amazon is reportedly seeking a U.S.Federal Aviation AdministrationThe company hopes to expand its drone delivery business from Calgary to Tolleson, Arizona, with approval from the Federal Highway Administration.

A noise level test conducted by Calgary City Manager Bryan Woods showed that Amazon drones have noise levels between 47 and 61 decibels, which is comparable to the noise of a suburban nighttime environment, a home refrigerator or a commercial office, according to Yale University's Environmental Health and Safety Department.

In May, Amazon submitted a proposal to the Federal Aviation Administration to increase the number of drone deliveries in Calgary from 200 to 469 per day. Shortly after, Calgary Mayor John Nichols wrote a letter noting that residents were unhappy with the noise.

"Since the Amazon Prime Air facility opened in Calgary, residents of nearby communities have expressed concerns to City Council about noise levels from drone takeoffs, landings and some delivery operations," Nichols said in the letter.

Amazon and Nichols did not immediately respond to requests for comment.

Amazon said in a statement that through its Prime Air drone program, "we are proud to have completed thousands of deliveries and served hundreds of customers."

The statement also said: "We appreciate the feedback from the Calgary community and will take into account the opinions of the local community whenever possible when making operational decisions for Prime Air." (Chenchen)