Research of the creation and development of unmanned aerial vehicles

Drones were created back in the USSR. Many believe that UAVs - unmanned aerial vehicles, otherwise known as drones, appeared only at beginning of 21st century. However, this is not case: since 60s last centuries, Soviet and American engineers have been building supersonic reconnaissance aircraft for armies their countries. In addition, drones are actively used environmental purposes. They called "eco-drones". no different from ordinary ones, prefix designed to emphasize purely peaceful, scientific purpose.