For starter, you had started with this
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And Iran also gotta start from somewhere. A platform was required to test new technologies along with other requirements to be tested and evaluated. You didn't produce F-22 all of a sudden, it took decades to introduce a radar evading platform.
Even F-117 was not a nice looking jet judging by its sharp edges.
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What an unfortunate to see the forum has given the place of a
professional to a self confessed troll. It is one of the disappointing aspects of this forum.
@WebMaster