Lockheed Martin X-44 MANTA
http://en.wikipedia.org/wiki/Lockheed_Martin_X-44_MANTA
TFX (Turkey) طائرة تركية من الجيل الخامس
http://en.wikipedia.org/wiki/TFX_(Turkey)
Northrop YF-23
http://en.wikipedia.org/wiki/Northrop_YF-23
Lockheed YF-22
http://en.wikipedia.org/wiki/Lockheed_YF-22