The significant refinements in wide-bandgap (WBG) semiconductors, along with advances in lightweight electric motors and batteries, have begun to support performance levels sufficient to enable applications that were previously unattainable. There are few uses for WBG devices for which the characteristics of gallium nitride (GaN) and silicon carbide (SiC) are more critical than in aerospace. Aerospace applications require extreme levels of gravimetric power density, efficiency, and reliability while at the same time having significantly greater cost tolerance on a component level than comparable ground-based applications. Unlike a nine-passenger van which may retail for 60,000 USD in 2023, a high-performance nine-passenger aircraft such as the King Air may list for 6,000,000 USD or more. At the same time, typical production ranges for the most popular aircraft models are in the tens to hundreds of units per annum, whereas automotive and consumer electronics production may reach millions of units. This makes aerospace, particularly electric aircraft, one of the most likely commercial adopters for early scaleup of novel WBG devices. There is ample reason to believe this will be the case, as it follows historical trends for adoption of power electronics technology.