Images circulating online appear to show the crash site of a Russian Su-57 Felon stealth fighter after a military aircraft went down near Moscow during a training flight on July 23. While Russian authorities confirmed that a combat training aircraft had crashed, they have not officially identified the aircraft type.
Several Russian military bloggers and social media accounts claimed the aircraft was a Su-57, Russia’s only fifth generation stealth fighter. Some unverified reports even suggested the jet may have been accidentally shot down by Russian air defenses in a possible friendly fire incident. However, no independent evidence has confirmed those claims.
According to witnesses, the pilot successfully ejected before the aircraft crashed and survived the incident. No casualties or property damage on the ground were reported.
The aircraft went down near Zvenigorod, about 65 kilometers west of central Moscow, while conducting a training mission in the Odintsovo district of the Moscow region.
Russia Confirms Military Aircraft Crash
Russia’s Ministry of Defense acknowledged that a “combat training aircraft” crashed shortly after takeoff on July 23.
State news agency TASS quoted the ministry as saying the pilot ejected safely, the aircraft was not carrying weapons, and the preliminary cause of the accident appears to be a technical malfunction. Officials did not disclose the aircraft model.
Why Many Believe It Was a Su-57
Speculation that the crashed aircraft was a Su-57 Felon stems largely from the location of the accident.
The crash occurred relatively close to Kubinka Air Base, one of Russia’s key military aviation facilities. Kubinka serves as the home base of the famous Russian Knights and Swifts aerobatic teams and has also hosted Su-57 evaluation and demonstration flights.
Since Ukraine expanded its long range drone campaign against targets around Moscow, however, most of Russia’s small operational Su-57 fleet has reportedly been relocated to Dzyomgi Air Base in Russia’s Far East, roughly 8,700 kilometers from the front line in Ukraine.

Russia’s Most Advanced Fighter
The Su-57 Felon entered limited service in 2020 as Russia’s first domestically developed fifth generation stealth fighter.
Key specifications include:
- Length: 20.4 meters
- Wingspan: 14.1 meters
- Maximum takeoff weight: about 35 tonnes
- Top speed: approximately Mach 2 (2,470 km/h)
- Ferry range: around 3,500 kilometers
- Service ceiling: nearly 19,800 meters
- Internal weapon bays for air to air and precision strike missiles
- Maximum weapons payload: approximately 7.5 tonnes
- Crew: one pilot
Industry estimates suggest Russia has built only around 30 to 40 Su-57s, with fewer than 30 believed to be operational.
Difficult to Replace
If the aircraft involved was indeed a Su-57, the loss would represent a significant setback for the Russian Aerospace Forces.
Production of the fighter has progressed slowly, and export success has been limited. Algeria remains the only confirmed foreign customer for the aircraft, while a previously proposed joint development program with India failed to materialize.
The first confirmed Su-57 crash occurred during a factory test flight in Russia’s Khabarovsk region in December 2019. The aircraft has also reportedly been targeted by Ukrainian drones, including attacks in June 2024 and April 2026.
Another Blow to Russia’s Air Force
The reported crash came just days after U.S. Chairman of the Joint Chiefs of Staff General Dan Caine told lawmakers that a Ukrainian F-16 fighter had shot down a Russian Su-35 during an air battle on July 8.
Although Moscow has not officially acknowledged that incident, several Russian military bloggers have reported the loss.
According to Western estimates, Russia has lost approximately 380 to 430 fixed wing military aircraft since launching its full scale invasion of Ukraine in February 2022. Russia has not released official figures regarding its aircraft losses.