The Navyโ€™s X-47B Unmanned Combat Air System (UCAS) demonstrator completed its first-ever arrested

landing at Patuxent River on May 4, another key step to mature the system for its historic carrier-based

tests later this month.

ย โ€œLanding an unmanned aircraft on an aircraft carrier will be the greatest singular accomplishment for the UCAS demonstration and will serve as the culmination of over a decade of Navy unmanned carrier integration workโ€, said Capt. Jaime Engdahl, Navy UCAS program manager. โ€œShore based arrested landing testing here at NAS Patuxent River is our final check that the X-47B can meet that objective.โ€

During Saturday’s test, the X-47B used a tailhook on the aircraft to catch a carrier representative cable, known as the MK-7 arresting gear, to quickly stop the aircraft. This is known as an arrested landing, the type of recovery required aboard aircraft carriers. The MK-7 arresting gear is an underground installation of actual carrier equipment that accommodates structural tests and aircraft/arresting gear compatibility studies with all X-47B completes key milestone as it prepares for carrier tests at seamodels of U.S. Navy carrier aircraft.

ย โ€œShore-based testing allows our combined Navy/Northrop Grumman team to control test conditions before taking the aircraft to the ship,โ€ said Matt Funk, Navy UCAS test team lead. โ€œWe are gradually building up to the maximum load conditions we expect to see during an arrested landing aboard an aircraft carrier.โ€

This month the aircraft will undergo sea-based carrier testing, catapulting from the carrier deck and potentially completing landings aboard USS George H.W. Bush (CVN 77). “The entire system has performed very well across a large set of shore-based testing events including aircraft performance, flying qualities, navigation performance, catapult launches, and precision landings designed to stress system operation,โ€ Engdahl said. โ€œOur final carrier-landing software simulation shows excellent performance, flight test results are very good, and we are confident the X-47B will perform well on the ship.โ€

The X-47B is a tailless, autonomous aircraft designed with unique features for an unmanned aircraft, such as carrier suitable l