These photos show how Amazon’s San Bernardino air hub works

Automated robots called drives quickly move packages Tuesday, July 23, 2024, at Amazon’s San Bernardino air hub. The roughly 660,000-square-foot facility is Amazon’s third busiest air hub in the U.S. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

An Amazon Prime Air Boeing 767 arrives at Amazon’s air hub at San Bernardino International Airport on Tuesday, July 23, 2024. The 655,000-square-foot facility is the third busiest Amazon air hub in the country. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

Amazon workers unload containers of packages Tuesday, July 23, 2024, from an Airbus A330 at the San Bernardino air hub. Ten inbound and 10 outbound flights a day operate from the facility. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

An Amazon employee closes a cargo door on a Boeing 767 before it departs Tuesday, July 23, 2024, from Amazon’s air hub at San Bernardino International Airport. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

Amazon workers unload unit load devices full of packages from an Airbus A330 jet at Amazon’s San Bernardino air hub Tuesday, July 23, 2024. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

Amazon employees unload containers from a jet at the company’s San Bernardino air hub Tuesday, July 23, 2024. Zero-emission equipment on the air hub’s ramp helps the facility reduce its carbon footprint. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

An Amazon employee walks under an Airbus A330 being loaded with cargo at the company’s San Bernardino air hub Tuesday, July 23, 2024. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

A device measures the WetBulb Globe Temperature on the ramp at Amazon’s air hub at San Bernardino International Airport on Tuesday, July 23, 2024. Managers said the WetBulb temperature provides a more accurate reading of heat stress. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

An Amazon employee waits to help guide a jet for departure while standing under a fleet of Boeing 767 jets at the company’s San Bernardino air hub Tuesday, July 23, 2024. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

An Amazon associate prepares for a departing flight at its San Bernardino air hub Tuesday, July 23, 2024. Boeing 767s and Airbus A330s connect the facility with points throughout the continental U.S. and Hawaii. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

Caster wheels built into a loading dock at Amazon’s San Bernardino air hub help move containers loaded into and out of aircraft at the facility at San Bernardino International Airport on Tuesday, July 23, 2024. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

Packages move along a conveyor belt for sorting at the Amazon air hub at San Bernardino International Airport on Tuesday, July 23, 2024. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

A package moves along a conveyor belt Tuesday, July 23, 2024, for sorting at Amazon’s air hub at San Bernardino International Airport. The facility handles at least 18,000 shipments an hour. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

A robotic arm called a Robin picks up a package Tuesday, July 23, 2024, at Amazon’s air hub at San Bernardino International Airport. Robots are used to lessen the strain on employees, the air hub’s general manager said. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

An outbound truck is loaded with parcels at Amazon’s air hub at San Bernardino International Airport on Tuesday, July 23, 2024. Movement of trucks and planes is coordinated to ensure an efficient and fast flow of packages. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

A cart, seen Tuesday, July 23, 2024, holds cooling gear that managers say is available to employees at Amazon’s air hub at San Bernardino International Airport. The online retailer says it takes a number of steps to protect workers in a region where summer temperatures can exceed 100 degrees. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

Mike Berg, general manager at Amazon’s San Bernardino air hub, describes how the facility operates Tuesday, July 23, 2024, as a Boeing 767 is loaded on the ramp at San Bernardino International Airport. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)

Packages head down a high-speed conveyor belt and are scanned automatically on six sides Tuesday, July 23, 2024, at Amazon’s air hub at San Bernardino International Airport. (Photo by Will Lester, Inland Valley Daily Bulletin/SCNG)