The latest in drone and robotics technology was on display recently at the world's largest unmanned systems exhibition in Washington, D.C. California-based AeroVironment (NASDAQ:AVAV), which makes several unmanned aircraft systems, announced at the conference that a solar solution for its hand-launched Puma AE drone has extended its flight time from three to nine hours -- significantly longer than other small drones used in the field today.

Motley Fool analysts Rex Moore and Blake Bos were at the conference and chatted with AeroVironment's Dave Heidel. In the first of a multi-part series, Heidel shows off some of his company's aircraft.