In fact, that's the reason of the most of arguments. If the title was "Iran shew the initial concept of a new fighter" now we are discussing to how extend the concept is mature, or not.
If others say "as an initial concept this is not perfect!" Ok, the answer is simple. This is an initial concept which is going to be more mature.
But when commanders call it as a 5th generation fighter which is ready to produce, even have been tested then they show a mockup with a RC 1/10 scale model we just welcome every body to make a joke of us.
Also, we have access to one of the best stealth materials in the world, the RQ-170 body.This is not something every random country posses in the world. So even coming close to that material is a huge step.As you know, my major is Materials Science and I know what capabilities and resources we have for building a stealth radar-evading material.
I do not deny, there are some who have hostile attitude regards to Iran. But there are professional members here with serious questions. Do you see professional members criticizing the ballistic missile technology of Iran? No, because every body knows the steps we have had within 25 years to reach the current state.
Russia has a plan of 5th generation fighter from 1990, result is T-50 (from Sukhoi with comprehensive experience in aviation industry) and under testing yet. China's J20 is a program of more than 15 years! and suddenly a 5th generation fighter from Iran!
None of professional members says Iran can not develop a modern fighter, but with rational steps, planned program, more mature concepts, reasonable timing.
So if this jet (real size, not RC), taking off, maneuvering and landing, still that is only a vehicle that could fly in my eyes. Not an acceptable fighter technology of 21th century. Make a mature copy of mig-29 then see how I back that project.
I agree that they should have called it an initial concept that is open for numerous changes and enhances.
Those 'experts' who say its air intakes are small,well,how do they know? Just visually? There are some modelling software for aviation industries that spend hours and hours of heavy processing for a very simple design. I mean, those who have designed it, don't they actually know about how big the air intakes should be?but forum members here know it well? To be honest, it's not acceptable here.We can NOT conclude unless we say proper videos of tests.I respect everyone's opinion about it who raise questions, but I can not accept that any conclusion with some images of a possible early concept.
For example, look at these pics of F-105 fighter:
The air intakes in this jet are also small, but can we say : 'Look, it can not even take off, let alone maneuvering!' ?
Besides, no official has ever said it's a 5th generation, or I haven't heard it from anyone.I agree they may exaggerate in some cases, but saying that this plane has 'stealth features' doesn't mean it's a 5th generation.And of course it isn't.
And as for last part, what do you mean it's a 'vehicle that can only fly' or it doesn't belong to 21st century? How can you conclude that?Only because Iran has not much of experience in making jets? If this plane can do what officials say,even if it joins air force 8 years later, still it's very good.What is a 21st century jet supposed to do?
Don't forget, unlike countries who take those 'rational steps', we can not import one single piece of this jet from anywhere.We have to build them in home and for country that is under threat of war with some aging air force, doing and following what others doesn't seem logical.We have to risk, do extraordinary things, even if they are not tested before, for being able to catch up with countries who are considered as enemies or at least create a deterrence.
Don't get me wrong, I'm in no way saying that this jet is 'super advanced' or that it can definitively kill all modern aircraft!What I'm saying is, if this is a concept and early design, then it has much potential for further improvements.Iran has been working on developing a domestic jet fighter since 20 years ago.The problem with our military industries is that they don't show everything to media and present every detail.I agree, we suck in it and a huge change is needed in this regard.