The low-noise, low-cost Whisper Drive leaf blower could lead to quiet drone propulsion.
Credit: Whisper Aero
Leaf Blower on Path to Quiet Propulsion By applying its electric ducted-fan technology to a leaf blower, U.S. startup Whisper Aero says it has unlocked pathways to ultra-quiet propulsion for commercial package delivery and first-responder drones. Whisper was founded in 2020 to develop ultra-quiet...
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