Sylphaero develops electrothermal propulsion for aviation, crafting revolutionary electric jet engines that redefine clean and sustainable flight. Focused initially on business aviation, its engines boast speeds comparable to current technologies while eliminating fossil fuels and CO2 emissions. By harnessing the Joule Effect, its engines use a high-power electric arc to heat air efficiently, creating a plasma reaching temperatures up to 30,000 °C. Applicable to various jet engines, including ramjets and scramjets, the company’s innovation extends to drones, space launchers, and exceeds speeds beyond Mach 15. Sylphaero's technology is poised to electrify over 80% of the business aviation market, marking a paradigm shift in aerospace sustainability.