Whisper Aero says its electric aircraft propulsion systems are "20% more efficient and 100x quieter than anything else on the market." They're designed for drones, planes and possibly eVTOLs, and ...

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Electric aviation is in its infancy, equivalent to the piston era of a century ago. But propulsion startup Whisper Aero is already working to enable the transition from the propeller age to the jet ...

When Daniel Schubeler began working on electric ducted fans in 1997, the technology was in a nascent stage. Batteries at the time were far too heavy and more-efficient brushless motors were not yet ...