Abstract
<div class="section abstract"><div class="htmlview paragraph">Electrical vertical takeoff and landing (eVTOL) vehicles for urban air mobility
(UAM) are garnering increased attention from both the automotive and aerospace
industries, with use cases ranging from individual transportation, public
service, cargo delivery, and more. Distributed electric propulsion systems are
their main technical feature; they determine vehicle size and propulsion
efficiency and provide distributed thrust to achieve attitude control.
Considering the intended role of eVTOL vehicles, ducted-fan systems are ideal
choice for the propulsor, as the duct provides a physical barrier between the
rotating blades and the human, especially during the take-off and landing
phases.</div><div class="htmlview paragraph"><b>Key Technology Challenges of Electric Ducted Fan Propulsion Systems for
eVTOL</b> introduces the main bottlenecks and key enablers of ducted-fan
propulsion systems for eVTOL applications. Based on the introduction and
discussion of these important issues, this report will help eVTOL engineers
understand the key technical issues and inspire them to develop the ideal
solutions that will enable eVTOL vehicle deployment for UAM operations.</div><div class="htmlview paragraph"><a href="https://www.sae.org/publications/edge-research-reports" target="_blank">Click
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