Whisper Aero Develops Ultraquiet Electric Propulsion for Aviation and Defense.

Whisper Aero, a Tennessee-based startup, has developed an electric ducted fan that reduces noise and increases efficiency for various applications, including eVTOL aircraft and drones. The company has raised $32 million in a Series A funding round led by Menlo Ventures, EVE Atlas, Capricorn Investment Group, and Connor Capital. Whisper Aero has already secured contracts with the U.S. Department of Defense to validate its propulsor, which can make drones undetectable by noise at an altitude of 200 feet. The company plans to expand into commercial aviation, industrial, and consumer markets in the future.