Flaps Mimic Birds' Feathers
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Bird wingsScienceDaily
•Bird wings inspire new approach to flight safety
81% Informative
Princeton engineers found lightweight plastic flaps that flutter with pressure changes.
The flaps mimic a group of feathers, called covert feathers, that deploy when birds perform certain aerial maneuvers, such as landing or flying in a gust.
Researchers found that the five-row configuration improved lift by 45% , reduced drag by 30% and enhanced the overall wing stability.
The researchers modified the airplane body to outfit it with an onboard flight computer.
They programmed the flight computer to stall the aircraft autonomously and repeatedly.
The findings could be extended to other applications where modifying the surrounding fluid would benefit performance.
The study could open the door to collaborations with biologists to learn more about the role of covert feathers in flight.
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