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Cutting-edge drone technology is changing -- take a look - CNET
LaunchPoint Debuts New Hybrid Power Solution to Extend Drone Ranges - Aviation Today
MIT's gas-powered drone is able to stay in the air for five days at a time | TechCrunch
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Heavy Fuel Engine for Australian Camcopter Drone
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SOAPdrones variable pitch quadcopter uses petrol power for heavy-lifting endurance | SP Robotic Works
Gas-Powered Drones Solve Electric Drones' Greatest Weakness