A Better Motor Is the First Step Towards Electric Planes

In a white and grey laboratory, where neat runs of orange cables on the walls provide a relief of color, a three-bladed propeller spins on the front of a Cessna “Iron Bird” test frame. It’s eerily quiet, free of the buzz you expect from a propeller-propelled aircraft. Just the whoosh of air, like a ceiling fan spinning at full speed.

Learn more about your ad choices. Visit podcastchoices.com/adchoices