Why aren’t planes struck by lightning?

Airplanes are designed to withstand hundreds of thousands of amperes of electricity—far more electricity than a lightning bolt can deliver. An airplane’s first round of defense is ensuring that fuel tanks and fuel lines are fully encased so that it almost impossible for a lightning spark to trigger a fuel explosion.

Adding to that safety precaution, the skin of airplanes—aluminum in older planes, a composite in more modern models—is designed to conduct electricity off of the plane. When lightning strikes a plane, it sends up to 200,000 amperes of electricity rocketing into the plane’s skin. The electricity follows the outer surface of the plane’s frame and then jumps back into the air, thanks to little antenna-like devices called static wicks.


Picture Credit : Google