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The biggest-rotor helicopter in the world could lift over 10,000 pounds and be heard from eight miles away

Helicopters come in all sorts of weird shapes and sizes. In the early days of mass-produced helicopters in the 1940s and ...
cerebral-overload

NASA Completes First Flight of Laminar Flow Scaled Wing Design

NASA completed the first flight test of a scale-model wing designed to improve laminar flow, reducing drag and lowering fuel ...