Mission Vold-e Design of Prandtl-Plane eVTOL
A.J.E. Brouns (TU Delft - Aerospace Engineering)
E. Ceylan (TU Delft - Aerospace Engineering)
U. Dinç (TU Delft - Aerospace Engineering)
W. Grefkowicz (TU Delft - Aerospace Engineering)
I.S. Ivanov (TU Delft - Aerospace Engineering)
L.I.F. Jordans (TU Delft - Aerospace Engineering)
A. Pequeño Rodríguez (TU Delft - Aerospace Engineering)
D. Roos (TU Delft - Aerospace Engineering)
B.D. Taskin (TU Delft - Aerospace Engineering)
B.E.G. Verhoef (TU Delft - Aerospace Engineering)
C.I.L. van der Weijst (TU Delft - Aerospace Engineering)
F. Scarano – Mentor (TU Delft - Aerospace Engineering)
R.P. Dwight – Mentor (TU Delft - Aerospace Engineering)
N. Dhiman – Mentor (TU Delft - Aerospace Engineering)
S.J. Randeraad – Mentor (TU Delft - Aerospace Engineering)
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Abstract
Vold-e is a fully electric autonomous eVTOL designed for urban and regional air mobility. Its key innovation is a folding Prandtl wing, which reduces ground footprint while maintaining aerodynamic efficiency. The aircraft carries four passengers, has a range of 200 km, and reaches speeds of 200 km/h.
The design combines six electric rotors, a lightweight composite structure, and advanced autonomous control systems with redundant safety features. Aerodynamic and structural analyses confirm that the aircraft is feasible, with strong efficiency and stability performance. Vold-e also offers zero in-flight CO₂ emissions, reduced land use, and competitive future operating costs. The main challenges are technical complexity, certification, and market adoption.