When deployed, the rotors are more aerodynamic, but less safe. | Photo: EPFL

Cargo drones need special landing pads because their rotors pose a danger during take-off and landing. The robotics researcher Przemysław Kornatowski of EPFL has now developed a drone that automatically retracts its rotors into a safety cage at low altitudes. This has a negative effect on its aerodynamics, but makes the drone safe enough for it to land on your hand. As a result, for example, sick people could receive their drug deliveries on their balcony.

P. M. Kornatowski et al.: A Morphing Cargo Drone for Safe Flight in Proximity of Humans. IEEE Robotics and Automation Letters (2020)

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