UAVs - How They Work and Why They Are Useful

This NASA video segment explores the world of Unmanned Air Vehicles (UAV). Designed to provide a cost-efficient and safer way to explore, UAV can go places manned air vehicles cannot. UAV travel lower, longer, and venture into more hazardous spaces than manned air vehicles. Michael Logan, head of the Small Unmanned Aerial Vehicle Lab (SUAVE) at NASA Langley Research Center, explains a variety of UAV.