NOVA/PBS NOVAPBS
RQ-4 Global Hawk (USA)
Though it is still considered experimental, Global Hawk was rushed to Afghanistan for deployment during the first weeks of the recent U.S. war there. A product of one of the world's most successful UAV manufacturers, Teledyne Ryan, Global Hawk is the third installment of the DARPA "dream team" that includes Predator and DarkStar. With its 116-foot wingspan, Global Hawk is designed to take off from a base in the U.S., fly autonomously to a country of interest, collect and transmit surveillance data at heights of up to 65,000 feet, and then return to its base without refueling.

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