TEHRAN, July 1, 2026 — Russia is continuing the production of Sukhoi Su-35 multirole fighter aircraft for the Islamic Republic of Iran Air Force (IRIAF), although deliveries remain delayed until reconstruction work at Iran's Hamadan Airbase is completed. According to sources close to the IRIAF, production is progressing steadily, with a total of 30 aircraft expected to be completed by early 2027.
Production has advanced consistently over recent months. By March 2026, Russian manufacturing facilities had completed 16 Su-35 fighters. One additional aircraft was completed in April, bringing the total to 17. As of July, defense estimates indicate that between 19 and 20 aircraft have now been completed and are being stored in Russia pending delivery.
The Su-35 acquisition is part of a broader defense agreement between Russia and Iran that was formally initiated in 2021 and is valued at more than $6 billion. The package includes fighter aircraft, pilot training, compatible weapons systems, and reports indicate the wider agreement could eventually include up to 48 Su-35 fighters, with production and deliveries extending into 2027 and 2028.
Deliveries Await Hamadan Airbase Upgrades
The transfer of the aircraft has been delayed because Hamadan Airbase, also known as Noje Airbase, is undergoing reconstruction and modernization to support the operational requirements of the Su-35 fleet.
Military engineering units are reportedly working continuously to restore damaged infrastructure. Recent satellite imagery has shown extensive construction activity, including the development of large hardened aircraft shelters designed for the Su-35. These reinforced shelters are intended to improve protection for the aircraft once they enter service.
The completed fighters will remain in Russia until the upgraded facilities at Hamadan Airbase are ready. According to sources, Iran is also bearing the cost of storing and maintaining the completed aircraft during this period.
Pilot Training and Weapons Package
While awaiting delivery, Iran is continuing preparations for the aircraft's induction into service. The country has purchased three Su-35 flight simulators, which are expected to be delivered shortly. These will complement the Yak-130 advanced trainer aircraft that Iran has operated since 2023 and support pilot transition to the Su-35.
The Su-35 is equipped with advanced avionics, a phased-array radar, long-range detection capabilities, and high maneuverability. It is expected to significantly enhance the IRIAF's combat capabilities and gradually supplement its aging fleet of F-14 Tomcat, F-4 Phantom II, and MiG-29 fighters.
According to leaked defense documents, the contract includes approximately 327 guided munitions, comprising R-73 and R-77 air-to-air missiles, as well as Kh-31 and Kh-38 precision-guided air-to-surface missiles.
The Su-35 acquisition is one of Iran's largest air force modernization programs in recent decades and reflects the continuing defense cooperation between Tehran and Moscow. With production progressing as planned and infrastructure work advancing at Hamadan Airbase, deliveries are expected to begin once the base is fully prepared to receive and operate the new fighters.
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