The Defense Advanced Research Projects Agency (DARPA) has long been the source of some of the most stunning aircraft in the world, and its latest aircraft is continuing that trend. On March 9, 2026, DARPA officially launched SPRINT X-76, a proof-of-concept technology demonstration that allows military aircraft to achieve high-speed flight independent of runways. When DARPA came up with the concept, it argued that one of the most difficult issues in the battlespace was weighing the needs of high-speed aircraft with the “anywhere flexibility of slower helicopters.”
SPRINT stands for “Speed and Runway Independent Technology” and aims to create a new type of aircraft that combines the speed of a jet with the landing and takeoff versatility of a helicopter. While DARPA showed off the X-76 in the form of an artist’s rendering, it’s already under construction. Bell Textron Inc., which along with Boeing Co. is responsible for production of the V-22 Osprey tilt-rotor aircraft and several military helicopters, has begun building prototypes. This follows a successful critical design review, which resulted in SPRINT being officially designated as an X-plane.
SPRINT is a joint program between DARPA and U.S. Special Operations Command (USSOCOM) designed to “break the long-standing military trade-off between the high speeds of fixed-wing aircraft and the agile, runway-independent operations of vertical takeoff and landing platforms.” DARPA calls this aviation technology the oldest trade-off, and while there are vertical take-off and landing aircraft and hybrid vehicles like the V-22, the X-76 aims to surpass all previous capabilities and push military aviation into the future.
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All about SPRINT X-76
Artist’s rendering of DARPA X-76 aircraft flying together – DARPA/X
Bell is moving forward with manufacturing and ground testing of the X-76 demonstrator, which may take some time to fully develop. If the aircraft proves its worth, it may be acquired by the War Department, but these things take time and a lot of money, so it’s anyone’s guess when the X-76 will receive a proper military designation and be added to the inventory. Looking at this aspect of military vehicle procurement, all the information DARPA and Bell have released about the X-76 shows that it doesn’t just look cool; This will be a significant force multiplier for Special Operations Command.
The aircraft is expected to have the following capabilities: reach cruise speeds of 460 mph or faster, be able to fully hover in harsh environments, and operate on unprepared surfaces. By comparison, the relatively expensive Bell Boeing V-22 Osprey cruises at 276 mph, so the X-76 aims to be significantly faster than a traditional rotor-driven aircraft. DARPA SPRINT Program Manager, Lt. Col. Ian Higgins said of the X-76:
“For too long, runways have been both enablers and restrainers, granting speed but also creating serious vulnerabilities. With SPRINT, we are not just building an X-plane; we are building options. We are working to provide the option of surprise, the option of rapid reinforcements, and the option of life-saving speed anywhere in the world, without any runway.” Flight testing is expected to begin in early 2028 and could continue the Bell X-plane program’s long history of success.
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Read the original article on SlashGear.