The Boeing X-32 is a concept demonstrator aircraft that was designed for the Joint Strike Fighter competition. It lost to the Lockheed Martin X-35 demonstrator, which was further developed into the Lockheed Martin F-35 Lightning II. In 1993, the Defense Advanced Research Projects Agency (DARPA) launched the Common Affordable Lightweight Fighter project (CALF). The project’s purpose was to develop a stealth-enabled design to replace all of US Department of Defense lighter weight fighter and attack aircraft, including the F-16 Fighting Falcon, McDonnell Douglas F/A-18 Hornet, and vertical/short takeoff / vertical landing (V/STOL) AV-8B Harrier II. Around the same time, the Joint Advanced Strike Technology (JAST) project was started and in 1994, the U.S. Congress ordered the two to be merged into one program under the JAST name, which was renamed the Joint Strike Fighter (JSF) program in 1995. This patch does not come with velcro attached.