H3X is shaking things up with its announcement of its HPDM-3000, a three megawatt motor. Thirteen years ago, your editor gave his first presentation at an electric aircraft symposium, held that year in the Hiller Aviation Museum in San Carlos, California. Dr. Brien Seeley, founder and then head of the CAFE (Comparative Aircraft Flight Efficiency) Foundation, had asked for research on motors of 100 kilowatts or more. It was hard to find units of over 50 kW at that time, but people like Roman Susnik were managing ultralight motors of over 100 kW for motorized sailplanes With competitors like MagniX and ZeroAvia in the game, H3X introduces the HPDM-3000, a 2.8 mW (3,753 horsepower) ultra-high power density integrated modular motor drive (IMMD). Developed by a group of young graduates of the University of Wisconsin at Madison, H3X’s motors combine extreme lightness for the power produced with cutting edge manufacturing techniques. In this video, Chief Technology Officer Max Liben explains the …