DARPA and Aurora Flight Sciences are targeting 2025 for the first flight of the X-65 drone, a revolutionary experimental aircraft designed to maneuver using bursts of air instead of conventional control surfaces. The program has faced delays and cost growth, but the airframe has now received its wings, moving closer to flight test.
The X-65 eliminates traditional flaps, ailerons, and rudders by employing active flow control actuators that redirect high-pressure air from the engine to create precise aerodynamic forces. This approach could reduce mechanical complexity, weight, and radar signature, potentially reshaping future fighter and drone designs.
The reduced observability and simplified structure make the X-65 attractive for stealthy unmanned combat air vehicles. Rival air arms, particularly China and Russia, are investing in similar fluidic control technologies, though no comparable flight demonstrator has been publicly funded at DARPA's level.
Aurora and DARPA have not disclosed the exact contract value for the X-65 program, but past DARPA X-plane efforts typically range from tens to hundreds of millions of dollars. The current timeline calls for first flight in the first half of 2025.
Some analysts caution that active flow control systems may struggle at low airspeeds or during high-angle-of-attack maneuvers, and the technology has yet to prove its reliability outside controlled wind tunnel tests. The X-65's flight campaign will be closely watched for signs of performance gaps.