For decades, the Islamic Republic of Iran Air Force (IRIAF) has been a study in contradictions. It is a military branch that relies on 1970s-era American technology to defend against the very nation that built its planes. As of early 2026, the IRIAF finds itself at a critical crossroads, caught between a storied but aging past and a long-promised future of Russian-made modernization. With the recent escalation of regional tensions and the launch of joint operations by the United States and Israel, the world's eyes are once again on Iran's "flying museum" and its ability to hold the line.

The Backbone of the Fleet: American Classics

The most striking feature of the Iranian Air Force remains its inventory of American-made aircraft, acquired before the 1979 Revolution. The Grumman F-14 Tomcat, once the king of the skies, continues to serve as Iran's primary air superiority fighter. While the U.S. Navy retired its Tomcats years ago, Iran has managed to keep approximately 40 of these machines operational through a combination of reverse-engineering, domestic upgrades, and a clandestine global supply chain for spare parts. Some of these have been modernized into the F-14AM (Advanced Modernized) standard, capable of carrying indigenous missiles like the Fakour-90.

Supporting the Tomcats are the McDonnell Douglas F-4 Phantom II and the Northrop F-5 Tiger II. These aircraft, though decades past their prime, have been heavily modified with Chinese-built radars and Iranian-made avionics. The F-4 remains a versatile fighter-bomber, while the F-5 serves both as a light fighter and the blueprint for Iran's domestic aviation industry. Despite their age, these platforms represent a significant portion of Iran's roughly 250 combat-capable aircraft, though recent strikes in 2025 and early 2026 have reportedly taken a toll on their numbers.

The Russian Connection: The Su-35 Deal

The most significant development for the IRIAF in recent years is the long-awaited delivery of the Sukhoi Su-35 "Flanker-E" from Russia. After years of speculation and leaked documents, the deal for 48 of these advanced 4.5-generation fighters is finally materializing. The Su-35 represents a massive leap in capability, offering superior maneuverability, advanced radar systems, and long-range air-to-air missiles that far outclass anything currently in the Iranian inventory. To prepare for this transition, Iran has already integrated the Yak-130 Mitten trainer, a Russian jet designed specifically to bridge the gap for pilots moving from older platforms to modern fighters.

This partnership with Moscow is not just about hardware; it reflects a deepening strategic alignment. As Iran provides drones and other munitions to Russia, the Su-35 deal serves as the centerpiece of a reciprocal military relationship. For the IRIAF, these jets are not just a luxury—they are a necessity for survival in an increasingly hostile airspace dominated by fifth-generation stealth fighters like the F-35 Lightning II.

Domestic Innovation and Underground Fortresses

Facing decades of sanctions, Iran has been forced to develop its own aviation industry. The results are a mix of genuine innovation and clever rebranding. The HESA Kowsar, for instance, is a 100-percent indigenously produced fighter that, while visually identical to the F-5F, features a modern glass cockpit, digital data networks, and advanced ballistic computers. Similarly, the Saeqeh and Azarakhsh represent Iranian efforts to refine existing designs into more capable platforms. While Western analysts often dismiss these as "repackaged" old technology, they demonstrate a level of self-sufficiency that few nations in the region can match.

To protect these assets from preemptive strikes, Iran has moved much of its air power underground. The "Eagle 44" (Oghab 44) airbase, unveiled in 2023, is a massive facility carved deep into the Zagros Mountains. Designed to withstand bunker-buster bombs, these underground "nerve centers" house fighter jets, drones, and command facilities. In the current 2026 conflict, these bases are the IRIAF's best hope for maintaining a "fleet-in-being" that can survive initial waves of attacks and remain a threat to any invading force.

The Current Operational Reality

As of February 28, 2026, the IRIAF is in a state of high alert. Reports of MiG-29s flying over Tehran and Su-24 strike aircraft being repositioned suggest a force that is actively preparing for defense. The challenge for Iran is not just the quality of its aircraft, but the overwhelming technological gap it faces. While the Su-35s will eventually provide a formidable defense, the current fleet must rely on asymmetric tactics, integrated air defense systems, and the sheer resilience of its pilots to navigate the most dangerous period in the force's history.

Whether the Iranian Air Force can successfully transition into a modern power or will remain a relic of the Cold War depends on the outcome of the current conflict and the steady arrival of Russian reinforcements. For now, the IRIAF remains a unique and formidable player in the Middle East, proving that even an aging fleet can cast a long shadow when backed by domestic ingenuity and strategic depth.

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