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Are you sure China will give j10 to Iran? Are you sure the su22 is in same class of j10? Agr Agree,but Iran can not make titanium fuslege frame for heavy fighter at now. Forget the titanium composite, but may be carbon fiber composite do the work better.

you can define new project for new fighter which its fuslege design based on fuslege of adopted fighter and change other properties of fighter, as you can look to F22 which take many exprience from other fighters. Ghatering the efforts and centering all on one project which hope to solve some...

How you know it will bound to fail? Any engineering reason? Iran can not buy any new fighter, but can buy second hand fighters such f7 and su22. Editing any air frame is not easy but can be an option, as you see in Indian mig21bis and pakistanian jf17 or more further in china ftc2000 and other...

Original su22

Another option for IRIAF is modifying 44 Iraqi Su22 with removing heavy movable wings and change them with fixed delta wings added with canard. With AL21F as engine this editing give: more thrust to weight ratio to fighter And deleting nose air intake to side air intake give...

Mirage f1c has good planform to take it as a base of semi heavy fighter project.

The most hard to make material is Composite material. But you mentioned good advancing in material using in a modern fighter.

J85 is a turbojet it can be used to act as turbofan core after that, you should compare it's fuel consumption to f100,....

These fuslege have been shown in TV some years ago. Where they have gone?

Pratt & Whitney F135 compare thrust to weight ratio of J-85 and Pratt & Whitney F135 which is f-35`s turbofan. j-85 - Thrust-to-weight ratio: 7.5 (-21), 6.6 (-5), 6.8 (-13), 7 (-15) Pratt & Whitney F135 - Thrust-to-weight ratio: 5.185:1 (dry), 7.963:1 (wet/afterburning) j-85 has near Thrust...

Any reason?

J85 scaling up to 1 meter diameter can do the work. Single spool and safe.

Thank a lot I remember these images from fighter design thread in irandefence net

This is very important hunted image that you sent, may I know the source?

Qaher front cross section is high. Qaher has thick wings and thick stabilizers. High altitude bobber/striker does not need air superiority group fighters but Qaher is low altitude fighter. Acceleration is very important factor for fighters design, which make the at-all fighters manuverability ...

Qaher is a high drag fighter and High drag striker/bomber may acceptable, but with powerful air superiority group fighters and Iran has not that power. Best acceptable bypass ratio for turbofan powered fighter is arround 20 persent, increasing the bypass ratio will decrease the acceleration...

High bypass ratio turbofan has not enough acceleration to power high maneuverability fighters . Qaher as antiship fighter need some maneuverability to scape from air superiority fighter.

So why sofremahi has cockpit?

In kowsar jet one of guns has been removed

In nose air-intake fighters such mig21 ,f7 and su17/20/22 two problem should solved, location of landing gears and location of air-intake and optimizing these locations in redesign to minimize the fighter drag. locating landing gears behind air-intake in side or under-bely air intake is what...