The U.S. Customs and Border Protection (CBP) completed operational flight tests of Detect and Avoid (DAA) systems using Due Regard Radar (DRR) systems on board its GA-ASI Predator B drones. The tests confirmed that the DAA system provided the RPA pilot with a clear picture of surrounding air traffic, at least as good as 'eyes in the cockpit' of a manned aircraft.
Underground warfare is not new. Since ancient and medical times warfighters have often used subterranean passages, natural or man made, to gain access into enemy fortifications and escape siege. In modern times, underground warfare has been utilised primarily in guerrilla, enabling a weaker side to combat militarily superior opponent, taking advantage of tunnels, caves and other underground infrastructures prepared in advance as part of an orderly military strategy.
U.S. Customs and Border Protection (CBP) is displaying the Guardian, its maritime variant MQ-9 Predator B Unmanned Aircraft System (UAS), at the Paris Air Show 2011. The Guardian is flown from its home base at Cape Canaveral, Fla., to Le Bourget, France, onboard a U.S. Air Force C-17.
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