Undefined says its "silent" 70-dB drones will cause far fewer noise complaints in urban cargo delivery services than propeller-forced designs – although established drone delivery company Wing has ...
Back in May, Undefined Technologies introduced the world to its quiet, Silent Ventus drone, whose goal is to make itself heard on the market by making less noise than its competitors. Now the ...
Undefined's next-gen "silent" ion propulsion drone: still noisy By Loz Blain May 02, 2022 The Ventus drone ionizes air to create lift without moving propulsors – Undefined Technologies says it'll be ...
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