X-68A Advances Toward Revolutionizing Air Combat
by DARPA Tactical Technology Office
February 21, 2026

What was once only conceptual is now making steady progress toward reality.

DARPA’s LongShot with General Atomics Aeronautical Systems has successfully completed a series of technical milestones, moving its air-launched uninhabited vehicle – recently designated the X-68A – closer to flight testing.

Recent achievements, including full-scale wind tunnel tests and successful trials of the vehicle's parachute recovery and weapons-release systems, demonstrate significant progress in developing this next-generation capability.

The LongShot program is designed to fundamentally change air combat operations. The program’s premise is an uninhabited aircraft that can be launched from a larger aircraft, fly ahead of follow-on forces, and engage enemy targets with its own air-to-air missiles. This approach augments traditional fighter aircraft, enabling them to remain farther from the front lines, drastically increasing pilot safety while extending the overall force package reach and mission effectiveness.

The LongShot concept is intended to be host-platform agnostic, providing opportunities to integrate an operational variant onto fighters, bombers, or employed as a palletized munition from mobility aircraft.

“LongShot burns down significant technical risk and presents a viable path for the military services to increase air combat reach and effectiveness from uninhabited, air-launched platforms,” said Col. John Casey, DARPA LongShot program manager. “With the help of our partners, we’ve completed critical milestones necessary for the integrated flight test campaign, which will validate vehicle performance and lay the foundation for efficient follow-on development.”

The program leverages expertise from a multitude of U.S. government stakeholders, including:

The United States Air Force’s (USAF’s) Arnold Engineering Development Complex
USAF’s Life Cycle Management Center
USAF’s F-15 Program Office
USAF’s 96th Test Wing
Air Force Research Laboratory
Naval Air Warfare Center Aircraft Division
National Aeronautics and Space Administration
U.S. Army Engineer Research and Development Center
Aviation & Missile Center within the U.S. Army Combat Capabilities Development Command
U.S. Army’s Redstone Test Center within the U.S Army Test and Evaluation Command
U.S. Army’s Yuma Proving Grounds

General Atomics Aeronautical Systems, Inc. (GA-ASI) is the industry lead responsible for designing, building and demonstrating the LongShot concept.

With ground and integration testing currently underway, the program is building toward a flight test campaign as early as the end of 2026. These tests will prove the safe and effective employment of the X-68A from an F-15, confirm the flight worthiness of the LongShot vehicle, and demonstrate its ability to safely eject a captive sub-munition.

Defense Advanced Research Projects Agency (DARPA) | U.S. Department of War

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