The F110 has come full circle with US Air Force F-15s. After finding success internationally, the F110 will power the new, fly-by-wire F-15EX Advanced Eagle – its fifth F-15 variant, which is slated to replace the oldest F-15s remaining in the Air Force fleet. Once fielded, the F110-powered F-15EX will finally fulfill the possibility GE invested in decades ago with this engine and airframe for the Air Force.