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Jason Paur @ Autopia

The new blade shape is combined with another technology called Blue Pulse, which adds three flaps to the edge of the rotor blades. These flaps move up and down at 15 to 40 times per second, using piezoelectric motors that also help to reduce the blad

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http://www.mda.mil/index.html

The Missile Defense Agency (MDA) is a research, development, and acquisition agency within the Department of Defense. Our workforce includes government civilians, military service members, and contractor personnel in multiple locations across the Uni

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