Aurora Receives Funding to Design Active Flow Control X-Plane

The DARPA program award funds detailed engineering design for a full-scale X-plane to demonstrate the benefits of active flow control, and includes an executable option to build and fly the aircraft By Caroline Rees / 12 Dec 2022

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Aurora Flight Sciences has been awarded phases 2 and 3 of the Defense Advanced Research Projects Agency (DARPA)’s Control of Revolutionary Aircraft with Novel Effectors (CRANE) program. 

This latest award funds phase 2, the detailed engineering design work necessary to create a full-scale version of Aurora’s X-plane candidate for CRANE. The award also includes an executable option to build and fly the aircraft in phase 3.

Aurora’s X-plane candidate uses Active Flow Control (AFC) for multiple effects, including flight control at tactical speeds and performance enhancement across the flight envelope. 

The experimental, purpose-designed aircraft is designed around an AFC system that supplies pressurized air to AFC effectors embedded in all flying surfaces. The vehicle configuration provides AFC testing for multiple wing sweeps using nozzle arrays located at the upper surface of each wing. 

The aircraft is configured to be a modular testbed featuring replaceable outboard wings and swappable AFC effectors. The modular design allows for testing of Aurora’s AFC effectors and the AFC effectors of various other designs. By expanding testing capabilities beyond Aurora-designed components, the program further advances its goal to provide the confidence needed for future aircraft requirements, both military and commercial, to include AFC-enabled capabilities.

“Given all that we have learned about AFC and its application to tactical aircraft in prior phases of CRANE, the next step is to prove out these learnings in flight,” said Graham Drozeski, vice president of government programs at Aurora. “The CRANE X-plane is designed specifically to explore the effectiveness of AFC technologies at mission relevant scale and Mach numbers.”

Previously, Aurora completed phases 0 and 1 of DARPA’s CRANE program. During phase 0, the team developed tools and technologies for incorporating AFC in the early stages of aircraft design and developed two X-plane concept designs. In phase 1, Aurora completed preliminary design of the selected X-plane and conducted wind tunnel testing. The wind tunnel tests collected data that provided a rigorous foundation for developing flight control laws using AFC as a primary control effector.

Moving into phase 2 of the program, Aurora has begun the detailed engineering design of its full-scale, 30 ft wingspan, 7000 lbs gross weight, unmanned X-plane. In phase 3, Aurora would build the X-plane at its facilities in Virginia, West Virginia, and Mississippi. The vehicle would be used for AFC validation and demonstration at relevant scale and flight conditions, including flight speeds up to Mach 0.7. Flight testing is targeted for 2025.

Aurora continues to collaborate closely with its parent company, Boeing, on the design of the aircraft and its AFC system.

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Posted by Caroline Rees Caroline co-founded Unmanned Systems Technology and has been at the forefront of the business ever since. With a Masters Degree in marketing Caroline has her finger on the pulse of all things unmanned and is committed to showcasing the very latest in unmanned technical innovation. Connect & Contact

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