One of the most impactful technology demonstrators in this process was the YF-118G Bird of Prey ... a key feature in modern low-observable aircraft. The U.S. Air Force is conducting final ...
YF-118G Bird of Prey: The Stealth Pioneer The YF-118G was the stealthy, semi-secretive predecessor to the American-made F-22 and F-35 fighter jets. It set the stage for modern aircraft.