RQ-4 Global Hawk (Three) aircraft photo gallery

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RQ-4 Global Hawk (Three) is a high-altitude, long-endurance unmanned aerial reconnaissance system which provides military field commanders with high resolution, near real-time imagery of large geographic areas. The programme is funded by the Defense Airborne Reconnaissance Office (DARO) and managed by the Defense Advanced Research Projects Agency (DARPA) and the US Air Force. Northrop Grumman Corporation, Ryan Aeronautical Centre is the prime contractor and the principal suppliers include Raytheon Systems (sensors), Rolls-Royce North America (turbofan engine), Boeing North American (carbon fibre wing) and L3 Communications (communications system). The Global Hawk air vehicles are built at the Northrop Grumman (formerly Teledyne Ryan) aeronautical facility in San Diego. In March 2001, the US Department of Defense awarded Northrop Grumman a contract for the Engineering and Manufacturing Development (EMD) phase of the programme which concluded in February 2003 with the final delivery of the seventh pre-production (block 0) vehicle. In June 2001 a contract was placed to begin low-rate initial production (LRIP) for two production air vehicles and the mission control element of the system's ground station, to be completed by December 2003. RQ-4 Global Hawk (Three). The first production vehicle (block 10) rolled out in August 2003. A further LRIP contract for four vehicles was placed in February 2003 and a third in October 2004 for two vehicles. Block 10 deliveries were completed in June 2006. The US Navy had two RQ-4A air vehicles delivered in 2005. In April 2008, the USN selected the RQ-4N marinised variant of the Global Hawk RQ-4B Block 20 for the broad-area maritime surveillance (BAMS) unmanned aircraft system (UAS) requirement. The system design and development (SDD) contract awarded to Northrop Grumman requires the delivery of two UAVs with mission payloads and communication suites, one forward operating base mission control system, one systems integration laboratory and one main operating base mission control system. The RQ-4N will have a Northrop Grumman active electronically scanned array (AESA) radar, Raytheon electro-optic / infrared sensors, L-3 communications suite and Sierra Nevada Corp. Merlin electronic support measures (ESM). The RQ-4N is planned for maiden flight in 2011 and service entry in 2014. RQ-4 Global Hawk (Three)

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