The loops, rolls and rocketlike maneuvers these stunt pilots perform are astounding. What's the history behind aerobatics and how do they perform those tricks in the sky?
Aircraft that can alter their wing configurations in mid-flight have been in development since World War II. Now technology has finally caught up with the concept, and Northrop Grumman is in the process of building an unmanned shape-shifting plane: the Switchblade. Learn about variable-wing geometry. See more »