AEROjournal

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The Scientific journal AEROjournal is published by The Air Transport Department at the University of Zilina. It offers aviation professionals and academics an opportunity for publication of their research outcomes covering wide range of current issues in air transportation. The Air Transport Department at the University of Zilina (ATD) is a centre for education, research, and training in civil aviation. ATD provides accredited study programmes in a three - tier course structure of university education - bachelor, Ing (equivalent to MSc.) and PhD degrees. We also provide complex aircraft pilot training up to the CPL/IR/MEP (A) level (Commercial Pilot with twin-engine aeroplane qualification and qualification for flying in accordance with Instrument Flight Rules) and a theory up to the frozen ATPL (Airline Transport Pilot) level including Multi Crew Cooperation course. ATD is also the base of the National Civil Aviation Security Training Centre of the Slovak Republic. The Centre runs basic aviation security courses in line with the EU regulations for all categories of personnel in aviation. The papers in this journal cover all the aspects of aviation (including airlines, airports, air traffic management, aerospace and maintenance).

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    Long-range UAV hybrid petrol-electric powertrain
    (University of Žilina, 2023) Uhlár, Erik; Pecho, Pavol
    Along with increasing UAV both weight load and endurance requirements, there is a need to use alternative propulsion solutions, to satisfy the market as well as various customer applications. Although lithium polymer cells are yet well developed, they are still too heavy for long-endurance UAV missions. Hybrid petrol-electric powertrains are outstanding imitations of hybrid hydrogen-electric propulsion systems, which are currently under intensive development. Not only for their onboard power production and improved overall efficiency but also for simulating a weight load of a future hydrogen-electric system. Therefore, such a system is being tested and aimed to be used in fixed-wing UAVs for long-endurance missions. This paper describes the design and operation of a hybrid petrol-electric propulsion system and further operational optimization based on comprehensive ground testing.
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