What number of drones were utilized by the UAV armada of Iraq ?
Japanese farmers have been using Yamaha 's R-50 and RMAX unmanned helicopters to dust their crops since 1987.T - Hawk and Global Hawk drones were used to gather information about the damaged Fukushima Number 1 nuclear plant and disaster - stricken areas of the Tōhoku region after the March 2011 tsunami .