Whisper Aero is spinning up something interesting in the world of aerospace—and lawn care.
Uber Elevate, which focused on flying taxis and urban air mobility, in 2020.) Moore notes that the result of the design is a “very rigid, very lightweight, high-performing fan unit.” Technically, what the company is working on is called an electric ducted fan, which just means that a spinning fan is enclosed within a duct. But Whisper’s version of this device involves some tweaks. For one, the tips of the fan blades are all connected with a circular shroud.
Because of the shroud that connects all the fan blade tips, “you’re also eliminating the tip vortex noise from the blade, which is a high contributor of noise,” says Villa. Whisper currently shows off two different sized propulsors on their website. One has a fan diameter of just over 6 inches, and the other, nearly 10 inches. Moore notes that the small size of their thrusters swims against the current in the world of airplane engines, which like to be large to get better fuel efficiency. “Aircraft have essentially gone to fewer and fewer engines, that are bigger and bigger, to get to the highest possible efficiency and the lightest weight,” Moore adds.
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