Review of the Recent Developments About the Hybrid Propelled Aircraft

In the past decades, the exponential rise in fossil fuel consumption has led to a pressing need for sustainable energy solutions. This surge in fossil fuel usage has not only caused severe environmental repercussions but has also raised questions about our global dependence on such non-renewable resources. Ad-dressing these detrimental effects, NASA has urged the aeronautic industry to reduce aircraft fuel burn by a substantial 70% before 2025. As a result of comprehensive government and industry studies, electric aircraft propulsion has emerged as a pivotal focus of research. This encompasses vari-ous architectures such as full-electric, hybrid electric, and turbo-electric sys-tems. The aim is to significantly diminish the environmental impact of aviation and make it more sustainable for the future of passenger flight. This paper pro-vides an overview of the latest state-of-the-art innovations in propulsion sys-tems. It delves into the operational principles, technological requirements, ongo-ing research, and development efforts pertaining to all components essential for effecting this transformation in aviation technology. Additionally, the document will showcase existing commercial products, prototypes, and demonstrators to offer a comprehensive picture of the current scenario. Overall, this research is a vital step towards achieving energy sustainability and reducing the environmen-tal footprint of the aviation industry. By exploring and advancing electric air-craft propulsion, humanity can move closer to a cleaner, greener future for air travel.