The concept of “on call” transportation has now moved from the Earth to the sky. As demonstrated recently at a meeting of the players in Washington, D.C., the future of aerial transportation is transitioning toward “flying cars,” i.e., electric Vertical Takeoff and Landing (eVTOL) craft that hover and glide relatively quietly and without emissions, summoned by “app,” and without the need for a pilot. To accomplish this purpose, companies including Embraer, Aurora Aircraft, Karem Aircraft, Pipistrel USA Engineering, and Bell Aircraft Corporation have launched development of requisite engines and airframes.

In order to achieve the fundamental purpose of this (hopefully) revolutionary mode of air transportation, a number of parameters must be met in developing the requisite airframe, including a cruise speed of 150 miles per hour, 60 mile range, and capacity sufficient to fly three hours’ worth of short (e.g., 25 miles) trips carrying a pilot and four passengers. In addition, the “aircraft” must be able to takeoff and land vertically, like a helicopter, but fly on wings to conserve energy.

Each of the aspiring companies touts a different concept to accomplish these purposes.

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