Aurora Flight Sciences Advances X-65 with Active Flow Control Integration

This article is based on an official press release from Aurora Flight Sciences, supplemented by industry research data.

Aurora Flight Sciences, a Boeing subsidiary, has announced a critical milestone in the development of the X-65 experimental aircraft. According to an official company update, the X-65 fuselage has officially arrived at the company’s Virginia facility, marking the transition from major structural assembly to the final systems integration phase. Our teams at AirPro News have been tracking this development, which represents a significant step forward for the Defense Advanced Research Projects Agency (DARPA) CRANE program.

The CRANE (Control of Revolutionary Aircraft with Novel Effectors) program is designed to test Active Flow Control (AFC) technology. This experimental approach aims to replace traditional mechanical flight control surfaces, such as flaps, rudders, and ailerons, with pressurized jets of air. The successful integration of these systems could fundamentally alter aircraft design paradigms that have been in place since the dawn of aviation.

While the fuselage undergoes electrical, propulsion, and AFC systems integration in Virginia, Aurora Flight Sciences confirmed that manufacturing of the wing and tail assemblies is advancing concurrently at their facility in Bridgeport, West Virginia. Following a series of program restructurings, the X-65 is currently slated for its first flight in late 2027.

The Shift to Active Flow Control

Since the Wright Brothers’ first flight, aircraft have relied on moving external panels to steer and maintain stability. The X-65 demonstrator seeks to break this century-old paradigm. Based on DARPA program outlines, the aircraft utilizes 14 distinct effectors embedded across its flying surfaces. Instead of relying on mechanical hinges, these effectors emit steady bursts of pressurized air generated by an onboard auxiliary power unit.

How the X-65 Implements AFC

By manipulating the airflow over the aircraft’s surface, these pressurized jets create aerodynamic “speed bumps” that alter the plane’s pitch, roll, and yaw. To minimize risk during initial testing, the X-65 will be equipped with both conventional moving control surfaces and the experimental AFC actuators.

“The X-65 conventional surfaces are like training wheels to help us understand how AFC can be used in place of traditional flaps and rudders.”

This phased testing strategy, as described by former DARPA CRANE Program Manager Dr. Richard Wlezien, ensures a safe baseline. During successive flight tests, the mechanical controls will be selectively locked down until the aircraft is maneuvering entirely via Active Flow Control.

Manufacturing Progress and Revised Timelines

The transition of the fuselage to the Virginia facility represents a tangible shift from theoretical design to physical integration. However, the journey to this stage has required significant program adjustments. Originally scheduled to roll out and fly in 2025, the X-65 timeline was officially revised to a late 2027 first flight target.

Overcoming Supply Chain and Budget Hurdles

Industry research and DARPA statements indicate that the delay was driven by a combination of engineering challenges, supply chain bottlenecks, and rising costs. DARPA CRANE Program Manager Chris Kent noted the realities of the manufacturing environment.

“We were working through several engineering issues as well as honest-to-goodness supply chain issues,” stated Kent regarding the revised timeline.

To keep the program on an executable path, DARPA and Aurora Flight Sciences finalized a “co-investment” agreement in August 2025. Under this restructured framework, Aurora is investing its own capital to cap costs for the U.S. government. According to Department of Defense FY2026 budget estimates, Aurora was initially awarded a $42 million contract in January 2023. DARPA’s spending on the CRANE program was recorded at $38.3 million in FY2024 and $23.9 million in FY2025, with a projected $4 million allocated for FY2026.

Aircraft Specifications and Future Implications

The uncrewed X-65 is designed to provide flight-test data that is immediately relevant to real-world aircraft design. According to published program specifications, the aircraft features a 30-foot wingspan, a gross weight exceeding 7,000 pounds, and a distinctive, modular diamond-like wing shape. It is capable of reaching speeds up to Mach 0.7 (approximately 463 knots). The modularity of the wings allows sections and AFC effectors to be easily swapped out for future aerodynamic testing.

“The X-65 platform will be an enduring flight test asset, and we’re confident that future aircraft designs… will be able to leverage the underlying technologies,” noted Larry Wirsing, VP of Aircraft Development at Aurora.

AirPro News analysis

We view the successful implementation of Active Flow Control as a potential watershed moment for both military and commercial aviation. By eliminating heavy mechanical hinges, hydraulic actuators, and moving parts, manufacturers can significantly reduce an aircraft’s overall weight and mechanical complexity. This naturally leads to lower maintenance costs and improved fuel efficiency.

Furthermore, from a defense perspective, the tactical advantages are substantial. Maneuvering an aircraft without moving control surfaces means the outer mold line of the aircraft remains entirely static during flight. We assess that this capability could drastically reduce an aircraft’s radar cross-section, offering major advancements in stealth technology and survivability for next-generation fighter jets and unmanned aerial systems.

Frequently Asked Questions

What is the X-65?

The X-65 is an experimental, uncrewed aircraft developed by Aurora Flight Sciences for DARPA’s CRANE program. It is designed to test Active Flow Control (AFC) technology.

What is Active Flow Control (AFC)?

AFC is a technology that replaces traditional moving flight control surfaces (like flaps and rudders) with pressurized jets of air to steer and maneuver the aircraft.

When will the X-65 fly?

Following program restructurings and supply chain delays, the X-65 is currently targeted for its first flight in late 2027.

Sources

• Aurora Flight Sciences