USAF Museum Wright-Patterson Air Force Base, Ohio receives aircraft serial number 91-4003, it was one of nine built for engineering, manufacture and development testing in 1999, and became the first F-22 to launch an AIM-120 air-to-air missile at supersonic speeds. After completing its test program, the aircraft came to the museum and was restored by the museum’s restoration team.
What’s that thing this side of the left gear?
EDIT: I’ll be darned.
Looks like the X-36.
The National Museum of the U.S. Air Force website and photos.