they are old.. we need upgrade!
dont you think??
Any nation can use the latest designed aircrafts, but wishes most of time don't come true. F-4s, F-5s, Mig-29s and SU-24s are still the backbone of many air forces in the world.
People must get it out of their system, Iran CANNOT BUY NEW AIR FORCE, period! Even if Iran is able to buy say a 100 new planes, Iran still does not stand much chance against its current enemies in the air. IRIAF role for now is not to accomplish air superiority and it still could not do it with a new 100 air frames bought from abroad, technology that Iran's enemies would know inside out.
Iran is best to modify its own frames and keep the enemy wondering than purchasing new frames with their secrets at the disposal of Iran's enemies be it Russian, American French or even Chinese technologies.
Have a bit of trust in the people at the helm of IRI armed forces who are some of the most experienced in the military world. They know what they are doing! Iran has made major strides in manufacturing defence systems year after year so much that it has attracted a good portion of defence discussions in the world today. This is from a country that did not even produce hand grenades let alone radars, missiles, tanks and so forth at the beginning of Iran/Iraq war.
Catsoo