Russia’s Secret Weapon Lands in Iran With Engine Problems: A Su-57 Felon fighter

Satellite imagery has revealed the first known visit of Russia’s advanced Su-57 Felon fighter jet to Iran, marking a significant moment in military cooperation between the two nations. The aircraft, identified by its distinctive shape and markings, was spotted at Iran’s Shahrud airbase, approximately 200 miles northeast of Tehran, in images captured on February 18, 2025. This deployment follows reports of deepening ties between Moscow and Tehran, including Russia’s delivery of military hardware to Iran amid ongoing tensions with the West. The Su-57, Russia’s most sophisticated stealth fighter, is rarely seen outside its home country, making this sighting a notable development.

The purpose of the Su-57’s visit remains unclear, though analysts suggest it could be tied to joint military exercises, a demonstration of capabilities, or part of a broader arms deal. Iran has been seeking to modernize its aging air force, which consists largely of pre-revolutionary U.S.-made jets and Soviet-era aircraft, and the presence of the Su-57 could signal Russia’s willingness to share advanced technology. The timing aligns with Iran’s increased military collaboration with Russia, including the latter’s use of Iranian drones in Ukraine and reported negotiations for ballistic missiles. This visit may also serve as a message to regional adversaries and the U.S., showcasing the growing strength of the Russia-Iran axis.

While the satellite imagery confirms the Su-57’s presence, questions linger about the extent of its stay and operational use in Iran. The Shahrud airbase, primarily a testing and drone facility, is an unusual choice for such a high-profile aircraft, hinting at a secretive or experimental purpose. Russia has been cautious about deploying the Su-57 abroad, with only a handful of documented instances, such as in Syria in 2018. As both nations face international isolation, this event underscores their strategic partnership and could foreshadow further military integration, potentially shifting the balance of power in the Middle East.

The felon’s prolonged stay in Iran stemmed from engine problems with the jet. Satellite images showing the aircraft still present as recently as February 21 seem to back up those assertions. Engine difficulties have undeniably been a persistent issue throughout the Su-57’s fighter jets engineering history.

Its Not a 5th Generation Fighter Jet

The Su-57 isn’t a true 5th-generation fighter; it’s more of an advanced 4th-generation jet. Essentially, it’s an upgraded Su-27 fitted with an improved AL-31F or AL-41F engine.

Its avionics are lacking, and it falls short of stealth standards. It doesn’t even stand much of a chance against an F-16. Look at these defects and poor craftsmanship.