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Researchers Unveil Ultralight Solar-Powered Drone with Extended Flight Capability

The CoulombFly drone, weighing just 4.21 grams, uses an electrostatic motor and solar cells to achieve sustained flight in natural sunlight.

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Overview

  • Developed by Beihang University, the drone can hover for over an hour using sunlight alone.
  • The electrostatic propulsion system is highly efficient, requiring only 0.568 watts to stay aloft.
  • Current limitations include lack of flight control and susceptibility to changes in sunlight.
  • Potential applications include environmental monitoring and search and rescue.
  • Future improvements aim to add night operation capabilities and enhance durability.