John Yagielski is a graduate of Clarkson University and Rensselaer. He has worked at GE Power and GE Research in Schenectady, New York since 1990, most recently as the senior principal engineer for electric machines within the electrical power systems team at the research center. Since joining the GE research center in 2018, his focus has been on electric machines for hybrid aviation, as well as renewable power generation. For the prior 28 years he worked on or led teams developing and testing new air and hydrogen-cooled turbo-generators, with roles in both engineering and manufacturing quality. Mr. Yagielski has been an IEEE member for 30 years and has served as chair of the Power and Energy Society’s electric machine committee.