The Boeing X-32 was a concept demonstrator aircraft in the Joint Strike Fighter contest. It lost to the Lockheed Martin X-35 demonstrator which was further developed into the Lockheed Martin F-35 Lightning II.
Airplanes - Military - Static Display - Fighters
The X-32B demonstrated STOVL flight, first flying in March 2001.
First flight: September 18, 2000
Links: en.wikipedia.org, en.wikipedia.org