TOYOTA, Japan--(BUSINESS WIRE)-- #FlyingCar--SkyDrive Inc. ("SkyDrive"), a leading compact eVTOL aircraft (*1) developer based in Japan, today published its Aircraft Design Concept paper, which is titled "The eVTOL Safety Dilemma in Congested Urban Environments." The paper outlines the engineering rationale behind choosing a compact multi-rotor architecture specifically optimized for operating in space-constrained urban settings. In the emerging eVTOL industry, there is no single "correct" aircr