Testing the TVN quad copter decked out with a camera and instruments for measuring temperature, moisture, and pressure inside the tornado. It's made of styrofoam, and is so small to not become a dangerous projectile once it enters the tornado. Check out live streaming video from our network of storm chasers, Tornado Chasers online TV series, breaking news bulletins, and more at http://tvnweather.com
Source: Tornado quad copter test flights GONE BAD! (Youtube).