Tech Info: RQ-4 Global Hawk

RQ-4 UAV : wikipedia photo
RQ-4 UAV is designed by Northrop Grumman and operated the United States Armed Forces with a loitering range of 40,000 square miles a day, have lots of instruments at disposal: long range electro-Optical/ Infrared Sensors and systematic Surveillance using High Resolution Synthetic Aperture Radar ( SAR).

This UAV is powered by Allison Rolls-Royce AE3007H Turbofan engine with 7,050 lbf thrust and carries a payload of 2,000 pounds.
Aluminum and semi-monocoque construction are the composition of the fuselage while the wings are made of high-strength and lightweight composite  materials. Unit cost is 104 million US Dollars and in service since 1998.
with DARPA's ARGUS-IS Camera System: Tumblr.com


All operations of RQ-4 is integrated to Global Hawk UAV System.

Sources: Wikipedia.com
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