An unusual Russian drone intercepted by Ukrainian air defences has revealed the return of a decades-old aviation concept. Disguised as an FPV quadcopter, it features a distinctive ring-shaped, closed-wing design first explored in the 1980s.
Originally studied by Lockheed Martin to improve aircraft efficiency, the technology has resurfaced in the Ukraine war – enhancing drone range and payload as demand for more lethal and capable systems grows.
Discover how an idea from the past is reshaping modern warfare.
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