The eVTOL concept with wings and fixed rotors dedicated to lift has become popular recently. This video describes the engineering challenge in this kind of design when viewed from a propulsion system perspective. For the numerical analysis, a simplified comparison is made to Joby Aviation’s concept.

Chapters:
00:00 - Intro
00:47 - What is the Transition Phase?
06:44 - The dilemma of being a rotorcraft and an aeroplane at the same time
10:44 - A numerical analysis
18:14 - Conclusion