The U.S. Federal Aviation Administration (FAA) is gearing up for the introduction of electric vertical takeoff and landing (eVTOL) vehicles by 2028 as part of advanced air mobility (AAM) initiatives. Alaka'i Technologies stands out in this field by developing Skai, an eVTOL aircraft powered by hydrogen fuel cells, emphasizing the potential of hydrogen as an energy source for air mobility. The company highlights the environmental advantages of hydrogen fuel cells, with near-zero CO2 emissions when produced using renewable energy sources and increased efficiency compared to conventional engines. Urban air mobility (UAM) is seen as a solution to transportation challenges in burgeoning cities, with eVTOLs playing a crucial role in providing efficient and sustainable transport options. Alaka'i aims to make Skai the go-to mode of transportation, prioritizing cleanliness, convenience, and safety. To achieve this, the company partnered with SimuTech Group and utilized Ansys simulation tools to address complex challenges in designing a hydrogen-powered eVTOL, such as cooling the fuel cells efficiently. Ansys Fluent and Ansys Discovery software were pivotal in modeling and analyzing cooling system scenarios for Skai, ensuring optimal performance and safety. The comprehensive simulations covered intricate components like radiators, compressors, and coolants, offering detailed insights into heat transfer dynamics. By leveraging cutting-edge simulation technology, Alaka'i is paving the way for a sustainable and innovative approach to urban air mobility through hydrogen-powered eVTOLs.