Aviation
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Drone Gun Fighters for Cheap Missile Defence
Beating Jet-Powered Low-Cost Cruise Missiles at range and at scale.
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Financially Viable Supersonic Airliners
Slowing down a little to go farther and make the dream possible.
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Revisiting the Derschmidt Rotor
An Old Idea for High Speed Helicopters that might be ready for another chance.
Matthew's Eclectic Engineering 