American Companies Develop Unmanned Aircraft for Crops — VOA Learning English
Topics: наука й природа

Beginning
American companies are developing unmanned aircraft systems that are larger than drones. The goal is for the aircraft to help agricultural producers and reduce risks to human safety.
Rotor technologies
When Hector Xu was learning to pilot a helicopter in college, he remembered having a few bad experiences while flying at night.
The experiences led him to research unmanned aircraft systems while getting his doctorate at Massachusetts Institute of Technology. Then, Xu formed Rotor Technologies in 2021 to develop unmanned helicopters.
Rotor has built two autonomous helicopters that the company calls Sprayhawks. Rotor aims to have as many as 20 Sprayhawks ready for market next year. The company…
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