During 8 months 12 ETH mechanical and electrical engineering students, will develop a 4-seater electrical airplane with modular batterry system, based on a Sling TSi. The ETH focus project has started in Sept. 2020 and will end in May 2021.
Foundational research on e-aviationFor 5 months the two ETH mechanical engineering students Nicolai Solenthaler (1) and Alexander Weiser (2) researched the electric aviation cooperation with «Deutsches Zentrum für Luft- und Raumfahrt e.V.» (DLR) and further partners. Within their bachelor’s thesis they designed a 6-seater electric aircraft concept with innovative drive train and a range of up to 500 km
Analysis of viable aircrafts
For the development of a real plane multiple aircrafts were analysed. Since the beginning the 4-seater Sling TSi by «Sling Aircraft» from South Africa was among the favourites. The first Skype-Call with Sling Aircraft confirmed mutual interest and ended in a «Letter of Intent», the base for a feasibility study.
Based on the Sling TSi an optimised electrified version «e-Sling» was designed. It was apparent that for maximal range the wingspan of 9.5 m had to be increased by roughly 1 m. Further adaptions of the Sling TSi for the electric motor and for the wings to place the modular and cooled batteries are necessary.
Groundwork e-Sling focus projectIn February 2020 Alexander Weiser, meanwhile ETH Master student, travelled to South Africa for 3 months to do the groundwork. During his time at Sling Aircraft he will develop the modified aircraft structure. In parallel further project partners are searched for and the project’s organizational structures are developed.
Manufacturing aircraft structure
The modified aircraft structure has been manufactured by Sling Aircraft and shipped to ETH in Switzerland. The search for sponsors and project partners was continued. Further the organizational structures were finalized.
For 8 Months, 12 ETH mechanical and electrical engineers will realize the ETH e-Sling focus project in collaboration with project partners, sponsors and further supporters.
The picture shows the state of construction as of 10 March.