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Sikorsky flies rotor blown wing Uas in helicopter and airplane modes
Tail sitter drone can be scaled to larger sizes with hybrid-electric propulsion - VIDEO

Sikorsky, a Lockheed Martin company (NYSE: LMT) has successfully validated the advanced control laws to successfully fly a "rotor blown wing" uncrewed aerial system (UAS) in both helicopter and airplane modes. Powered by batteries, the 115 pounds (52kg) twin prop-rotor prototype has demonstrated operational stability and maneuverability across all flight regimes, and the potential to scale the unique...
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AVIONEWS - World Aeronautical Press Agency
AVIONEWS - World Aeronautical Press Agency