Smart Rotors

NASA Invents a Shape-Shifting Helicopter Blade

BY Cliff Kuang | 03-12-2009 | 9:59 AM | DESIGN

Even the best helicopters are loud, rickety gas guzzlers, and a big reason for that is the rotors themselves. As each blade cuts the air, it creates a turbulent wake; the next blade passes through that wake, causing it to ...READ MORE›