Two F-15Ds of the Oregon Air National Guard have been transferred to NASA's Armstrong Flight Research Center, where they will join the ones already operated by the agency. NASA has announced on Jan.

NASA Armstrong adds two retired F-15 jets to support supersonic research for the X-59, enabling high-altitude flights and ...

American space agency NASA gets its hands on two more F-15 fighter jets, one to fly alongside the X-59 experimental aircraft, ...