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Whisper Aero's propulsion systems minimize noise and offer 20% more efficiency when compared to quiet propulsion systems.
But Charles Buhler, a former NASA electrostatics expert, believes his team has built a gravity-defying propulsion system that does exactly that. Buhler, who helped found the Electrostatics and ...
The most unique feature of the B-36 was its unusual hybrid propulsion system, combining both propeller and jet engines. Can you name the largest piston-engined aircraft ever mass-produced?