TR Air-Force TF-X KAAN Fighter Jet

[Sanchez]

Is it possible that there were two different aircraft in the video. If you look at the connection between the vertical control surfaces and the plane they are different and in some cutouts the back sensor (thing) between the engines is there and sometimes not

Either more than one test or more than one aircraft. Most possibly multiple tests.

See the vertical stab bases, more than one test, or more than one prototype.

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