Analysis of the possibility of using a rotary engine based electric generator to propell a powered sailplane. The paper presents analysis of utilising Wankel type enine as a power input for an electric generator in the motor glider propulsion system. This generator would be a part of the propulsion system of a hybrid motor glider using the AOS 71 motor glider airframe. In the research, the rotational characteristics of the LCR 407ti wankel engine were determined experimentally. Driving torque run, power and fuel consumption were determined as a function of engine speed. The obtained results are presented in diagrams. The conceptual diagram of the hybrid drive is presented. The electric generator was selected and its effectiveness, as well as the effectiveness of entire propulsion system was assessed from the motor glider's performance point of view. Basing on the research conducted, conclusions were drawn and there were indicated the objectives and directions of further research on hybrid propulsion with specific aerodynamic and mass limitations of the aircraft
AYAR, M., GULEREN, K.M., KARAKOC, T. Motor selection process with AHP on mini electric UAV. International Symposium on Electric Aviation and Autonomous Systems ISEAS, Kiev 2018.
BREJLE, B., MARTINS, J. Electric, hybrid, and turboelectric fixed-wing aircraft: a review of concepts, models, and design approaches. Progress in Aerospace Sciences. 2019, 104, 1-19.
DE VRIES, R. HOOGREEF, M., VOS R. Preliminary sizing of a hybrid-electric passenger aircraft featuring over-the-wing distributed-propulsion. American Institute of Aeronautics and Astronautics. 2019.
DONATEO, T., SPEDICANTO, L. Fuel economy of hybrid electric flight. Applied Energy. 2017, 206, 723-738.
FEFERMANN, Y., MAURY, C., CLELIA, C. et al. Hybrid-electric motive power systems for commuter transport applications. 30th Congress of the International Council of the Aeronautical Sciences. Daejeon 2016.
FILLIPPONE, A. Flight performance of fixed and rotary wing aircraft. Butteeorth-Heinemann 2006, USA.
FINGER, F.D., BRAUN, C., BIL, C. A review of configuration design for distributed propulsion transitioning VTOL aircraft. 2017 Asia-Pacific International Symposium on Aerospace Technology. Seoul 2017.
FINGER, D.F., GÖTTEN, F., BRAUN, C. et al. On aircraft design under the consideration of hybrid-electric propulsion systems. In: ZHANG X. (eds) The Proceedings of the 2018 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2018). Lecture Notes in Electrical Engineering. 2019, 459. Springer. Singapore.
FINGER, F.D., BRAUN, C., BIL, C. Case studies in initial sizing for hybrid-electric general aviation aircraft. 2018 AIAA/IEEE Electric Aircraft Technologies Symposium. 2018.
FINGER, F.D., BRAUN, C., BIL, C. Impact of engine failure constraints on the initial sizing of hybrid-electric GA aircraft. AIAA Scitech 2019 Forum, San Diego.
FINGER, D.F., BRAUN, C., BIL, C. Impact of electric propulsion technology and mission requirements on the performance of VTOL UAVs. CEAS Aeronautical Journal. 2019, 10, 827-843.
KUŹNIAR, M. Wielokryterialna ocena doboru napędów lotniczych nowej generacji z wykorzystaniem metod energetycznych – PhD thesis. Rzeszów 2021.
MARIANOWSKI, J., FRĄCZEK, W. CZARNOCKI, F. Założenia podstawowe dla projektu motoszybowca AOS-H2. (not publish).
MARIANOWSKI, J., TOMASIEWICZ, J., CZARNOCKI, F. Analiza masowa motoszybowca AOS-H2. (not publish).
ORKISZ, M., KUŹNIAR, M. 3E – a new paradigm for the development of civil aviation. Combustion Engines. 2020, 181(2), 3-10.
Wankel aircraft-engine. WANKEL AG.
An assessment of the transient effect on helicopter main rotor stability and power demand
Radosław Raczyński, Ksenia Siadkowska, Karol Ścisłowski, Mirosław Wendeker
Combustion Engines
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