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Whisper Aero Nabs $32 Million Series A for Ultraquiet Electric Propulsion

The startup aims to enable the next generation of cleaner, quieter drones and aircraft.

A demonstration drone equipped with Whisper’s electric ducted fans takes flight. [Credit: Whisper Aero]
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Key Takeaways:

  • Whisper Aero has raised $32 million in Series A funding to advance its innovative electric ducted fan technology.
  • Their proprietary ducted fan system drastically reduces perceived aircraft noise, often to ultrasonic frequencies inaudible to humans, while also achieving 20% greater efficiency than comparable fans.
  • The company is initially focused on the defense sector, having secured $2.2 million in contracts with the U.S. Army, Air Force, and Special Operations Command.
  • Whisper Aero plans to expand its ultra-quiet and efficient propulsion technology into commercial aviation (like drones and eVTOL air taxis) and potentially broader consumer and industrial applications.
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Whisper Aero is taking a page from Muhammed Ali’s book.

Last week, the Crossville, Tennessee-based startup raised $32 million to help create aircraft in The Greatest’s image, capable of floating (flying) silently like a butterfly, and stinging—or in this context, delivering high efficiency—like a bee. 

Jack Daleo

Jack is a staff writer covering advanced air mobility, including everything from drones to unmanned aircraft systems to space travel—and a whole lot more. He spent close to two years reporting on drone delivery for FreightWaves, covering the biggest news and developments in the space and connecting with industry executives and experts. Jack is also a basketball aficionado, a frequent traveler and a lover of all things logistics.

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