On March 19, 2026, Iran claimed a feat that challenges decades of American air supremacy: the destruction of an F-35, a stealth fighter jet considered one of the most advanced and expensive in the world. Images released by Iranian forces show what appears to be the downing of the aircraft, sparking debate among experts about the actual effectiveness of stealth technology.
Since its entry into service, the F-35 was seen as a symbol of air dominance, thanks to its low radar cross-section (RCS), estimated between 0.001 and 0.005 m², theoretically making it difficult to detect. However, the March 19, 2026 incident over Iran highlighted potential vulnerabilities.
According to military analysts, several scenarios could explain how Iran managed to shoot down the F-35. One possibility is the use of the "Majid" optoelectronic system, an Iranian version of the Russian Pantsir, capable of detecting stealth targets through their thermal signature. The F-35, in fact, produces a significant amount of heat during its maneuvers, a weakness that sophisticated infrared sensors could exploit.
Another hypothesis involves the use of S-300PMU2 missile systems acquired from Russia. If these systems were able to lock onto the F-35 long enough to allow for an accurate shot, it would raise questions about the overall effectiveness of the Joint Strike Fighter (JSF) program, which represents an investment of over $1.7 trillion.
The incident comes after US officials claimed that Iranian air defenses had been neutralized, which may have led the F-35 pilot to underestimate the risks and enter a dangerous area without the necessary precautions. The Pentagon has not yet officially confirmed the loss of the aircraft, but the released images and the silence of the American authorities fuel speculation.
Experts point out that stealth is not an absolute guarantee, and systems combining long-range radar, infrared, and real-time digital processing can compromise the effectiveness of the F-35, especially in the event of human error. This event could mark a strategic turning point, challenging the doctrine of Western air superiority based on the undetectability of 5th generation aircraft. Iran's ability to potentially counter the stealth of the F-35 could force a re-evaluation of military strategies on a global scale.
