NASA has unveiled its newest experimental aircraft, the X-70 Fractal, a crewed research plane designed to test advanced flight controls and push aircraft manoeuvrability further than ever before in piloted flight. The agency announced the programme on Wednesday at the UP.Summit at its Kennedy Space Center in Florida, saying the aircraft should make its first flight under the NASA banner within two years.
The X-70 is built to be reconfigured quickly between test campaigns. Its flight-control systems can be swapped and retuned rapidly, and it can carry up to 2,000 pounds (about 900 kg) of experimental equipment in internal and external bays, letting engineers run a wide range of research programmes on a single airframe rather than building a new aircraft for each one.
NASA lists a takeoff weight of 10,000 pounds, a cruise speed of Mach 0.75 — about three-quarters of the speed of sound — a ceiling of 45,000 feet and a range of more than 1,726 miles (1,500 nautical miles). The emphasis is on handling and control, not speed: the X-70 is a subsonic test bed, not a successor to the retired SR-71 Blackbird, despite speculation that followed the removal of an SR-71 from display at NASA’s Armstrong Flight Research Center earlier this year.
“The X-70 Fractal gives NASA a crewed, high-performance platform to test advanced flight-control, maneuverability, and other cutting-edge technologies in real flight,” NASA Administrator Jared Isaacman said. “We expect her first flight under the NASA banner within the next two years, and X-70 is just one part of this new beginning for aeronautics.”
The aircraft joins a lineage that runs from the Bell X-1, which broke the sound barrier in 1947, through the hypersonic X-15 to the X-59, NASA’s quiet supersonic demonstrator, which made its first flight on 28 October 2025. Isaacman has promised more X-planes will follow, and Aviation Week reported that a further announcement was expected at the UP.Summit on Friday, with President Donald Trump due to attend the event.
Much about the X-70 remains undisclosed. NASA has named no manufacturer, given no cost and shown no photograph of the aircraft: its only released image is labelled “generated content”, an AI-made illustration, so the plane’s final appearance is unknown. The details in this article rest on NASA’s own announcement, and have not been independently verified.
Sources: NASA, “NASA Announces X-70 Experimental Aircraft to Advance Flight Research”, https://www.nasa.gov/news-release/nasa-announces-x-70-experimental-aircraft-to-advance-flight-research/ ; Aviation Week, “NASA Announces X-70 Program, Promises More Coming”, https://aviationweek.com/aerospace/emerging-technologies/nasa-announces-x-70-program-promises-more-coming
