Robotic bird targets drones' biggest aerodynamic shortcoming

4 hours ago

Researchers reverse-engineered the Australian kestrel to improve drone stability in gusty winds.
Vertical gusts cause 25–100 times more lift variation than horizontal gusts in small wings, a key challenge for low-altitude drones.
Kestrels use over 22 degrees of freedom, lightweight bodies, and distributed feedback systems to adjust instantly to turbulence.
A robotic replica revealed that synchronized wing and tail movements provide lift without attitude changes, unlike conventional drones.
The tail acts as a stability dial, allowing real-time adjustments between stability and maneuverability.
Feathers and sensory structures (filoplumes, mechanoreceptors) provide real-time airflow detection and automatic adjustments.
Future steps include studying the kestrel's predictive turbulence sensing and applying findings to larger aircraft with industry partners.

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