Pratt & Whitney Canada is at the forefront of exploring a hydrogen-powered future in Canadian aviation through the Hydrogen Advanced Design Engine Study (HyADES). The project, conducted in Quebec and Ontario, involves testing a modified variant of the PW127XT regional turboprop that burns pure hydrogen. Supported by Canada's Initiative for Sustainable Aviation Technology, this initiative aims to pave the way for sustainable aviation by adapting proven turboprop technology to operate with hydrogen fuel. Collaboration with Next Hydrogen Solutions highlights the importance of high-efficiency electrolyzers in this transition. Robert Peluso, the company's executive director of systems engineering, emphasized the significance of hydrogen in enabling alternative aviation fuels like sustainable aviation fuels (SAF). While acknowledging the challenges posed by hydrogen's lower energy density compared to traditional fuels, Peluso highlighted the environmental benefits of carbon-neutral hydrogen burning in aviation. The HyADES project, initiated in 2024, marks a significant step in Pratt & Whitney's history of hydrogen propulsion testing. By leveraging past experiences and ongoing projects like the HySIITE initiative, which targets substantial emissions reduction and improved fuel efficiency, the company is dedicated to driving innovation in sustainable aviation. Pratt & Whitney's commitment to exploring hydrogen propulsion aligns with the evolving industry trends towards carbon reduction and environmental sustainability. Despite the challenges presented by hydrogen's characteristics, ongoing research and technological advancements signify a promising future for hydrogen-powered aviation in Canada and beyond.