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Two modified RQ-4 Global Hawk unmanned aerial vehicles successfully demonstrated technology that allows unmanned vehicles to be automatically refueled in-flight, an important step in conducting surveillance and combat duties, said the Defense Advanced Research Project Agency on Oct. 5.
Currently global military aviation relies on a key enabler – aerial refueling. Fighters, bombers, reconnaissance and transport aircraft use “flying gas stations†to go the extra mile, it said. Increasingly, it said UAVs are conducting combat and Intelligence, Surveillance and Reconnaissance (ISR) operations, but the aircraft aren’t designed to be refueled in flight.
DARPA said it teamed up with NASA in 2007 to show high-performance aircraft can easily perform automated refueling from conventional tankers, but many unmanned aircraft can’t match the speed, altitude and performance of the current tanker fleet. The 2007 demonstration also required a pilot on board to set conditions and monitor safety during autonomous refueling operations, it said.
On Oct 5, DARPA’s two-year Autonomous High-Altitude Refueling (AHR) program, which concluded Sep. 30, explored the ability to safely conduct fully autonomous refueling of UAVs in challenging high-altitude flight conditions. During its final test flight, two modified Global Hawk aircraft flew in close formation, 100 feet or less between refueling probe and receiver drogue, for the majority of a 2.5-hour engagement at 44,800 feet, said the agency.
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Currently global military aviation relies on a key enabler – aerial refueling. Fighters, bombers, reconnaissance and transport aircraft use “flying gas stations†to go the extra mile, it said. Increasingly, it said UAVs are conducting combat and Intelligence, Surveillance and Reconnaissance (ISR) operations, but the aircraft aren’t designed to be refueled in flight.
DARPA said it teamed up with NASA in 2007 to show high-performance aircraft can easily perform automated refueling from conventional tankers, but many unmanned aircraft can’t match the speed, altitude and performance of the current tanker fleet. The 2007 demonstration also required a pilot on board to set conditions and monitor safety during autonomous refueling operations, it said.
On Oct 5, DARPA’s two-year Autonomous High-Altitude Refueling (AHR) program, which concluded Sep. 30, explored the ability to safely conduct fully autonomous refueling of UAVs in challenging high-altitude flight conditions. During its final test flight, two modified Global Hawk aircraft flew in close formation, 100 feet or less between refueling probe and receiver drogue, for the majority of a 2.5-hour engagement at 44,800 feet, said the agency.
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