The Newest Member of the US Air Force: F-35 JSF

[Lorenzo]

The F-35 Joint Strike Fighter
-The shaft-driven lift fan propulsion system that will enable the Lockheed Martin F-35B Lightning II stealth fighter to perform short takeoffs and vertical landings (STOVL) .

http://www.youtube.com/watch?v=nSFnAKZhXj4&feature=related

The F-35 JSF is a 4th-5th generation Air Supremacy Fighter.
It will replace the US Airforce' F-16.