Untold story of July 31: Hours after US strikes, Iran locked onto F-35 and destroyed another MQ-9 Reaper
Source: Press TV
By Press TV Website Staff
On the night of July 31, 2026, Iranian air defense systems achieved a remarkable double success, shooting down an American MQ-9 Reaper drone and establishing a weapons-quality lock on an F-35 Lightning II stealth fighter, forcing the advanced fifth-generation aircraft to abandon its mission and retreat from Iranian airspace in what represents one of the most significant technological defeats for US air power in recent decades.
The events unfolded amid a broader wave of Iranian retaliatory strikes against American military bases across the region, launched in response to US attacks on civilian and military positions in southern Iran.
The news that Iran’s air defense network had successfully intercepted and destroyed an MQ-9 Reaper operating over the region was broadcast at the same time. However, the more significant development – that a fire-control lock had been achieved on an F-35, forcing the stealth fighter to make a hasty and humiliating retreat – was not known to all.
Axios, a media outlet with close access to the Pentagon’s top brass, cited unnamed US officials in an August 31 report as saying that CENTCOM had become “concerned” about Iran’s efforts to rebuild its radar, air-defense, and anti-ship missile capabilities around the Strait of Hormuz, enabling it to target hostile US vessels with greater precision.
According to the report, one incident that particularly raised concerns in the corridors of power in Washington was the launch of an Iranian anti-aircraft missile at a US F-35 fighter jet providing cover for American ships operating in the strait.
The US officials described the incident as evidence that Iran was “trying to reconstitute its military capacity” – an acknowledgment, the report suggests, of what unfolded on July 31.
America came to dismantle Iran’s air defenses. Iran had other plans!▶️On July 31, the US used a significant portion of its stockpile in an attempt to dismantle Iran’s air-defense system in the south, only to face a stark reality hours later.Follow https://t.co/boCY50qfi9 https://t.co/WeVDhRWK8n pic.twitter.com/0i5ObXcmje— Press TV 🔻 (@PressTV) September 13, 2026
Significance of the MQ-9 Reaper shootdown
The MQ-9 Reaper represents one of the most capable unmanned aerial vehicles in the American inventory, serving as the primary platform for intelligence, surveillance, reconnaissance, and precision strike missions.
The Reaper can remain airborne for about 27 hours, fly at speeds up to 240 knots, operate at altitudes up to 50,000 feet, and carry a payload of nearly 1,750 kilograms, including Hellfire missiles and laser-guided bombs.
Costing up to $50 million per unit, the Reaper is more expensive than many fighter jets and is considered a cornerstone of American military strategy in the region.
The Reaper's sensor and communications systems allow it to conduct persistent surveillance over vast areas, while its weapons capability enables it to transition from tracking to striking targets in near-real-time.
The shootdown of such a high-value asset represents a significant operational loss that cannot be easily replaced. As per military experts, it is not merely a financial blow but a degradation of intelligence and strike capabilities, and the Iranian air defenses have managed to down a large number of them since late February, turning Iranian skies into their proverbial graveyard.
According to available information, at least 50 MQ-9 Reapers have been lost during the aggression, representing approximately twenty-five percent of the entire US Reaper fleet.
The loss of so many advanced UAVs reflects a pattern of Iranian air-defense effectiveness that has fundamentally altered the operational calculus for American forces in the region.
Each successful engagement not only reduces the number of available platforms but also forces American commanders to reconsider the viability of drone operations in contested airspace.
Crucially, the Reaper has no dedicated capability to defend itself against air-defense missiles or fighter aircraft. It is designed to operate well beyond the range of enemy air defenses, or in areas where these defenses have been sufficiently suppressed.
The shootdown on July 31 was particularly striking because it came just a day after the US military claimed to have targeted key Iranian military assets in southern Iran.
According to CENTCOM, during the intervening night of July 30-31, the US military carried out a “heavy wave of strikes” lasting roughly two hours against Iranian targets, including military command centers, missile and drone installations, coastal surveillance and defense sites, and maritime infrastructure.
The reports, which were widely published in Western media, appeared to create the impression that Iran’s military capabilities had been significantly degraded, potentially limiting its ability to mount further retaliatory operations against the US military assets.
Yet only hours later, an MQ-9 Reaper was shot down in the same region, followed by another significant development that, to date, has received little or no public reporting.
F-35 lock: A technological milestone
What followed after the downing of MQ-9 Reaper was establishing a weapons-quality lock on an American F-35, which military experts say is more significant than the Reaper shootdown.
The F-35 Lightning II is the most advanced combat aircraft in the American inventory, designed specifically to penetrate sophisticated air-defense networks through a combination of low observability, sensor fusion, and electronic warfare capabilities.
The aircraft is optimized against radar detection, particularly against the radar geometries and frequency bands associated with conventional fire-control systems. The ability to achieve a reliable track on such an aircraft represents a substantial technological accomplishment.
Earlier in March 2026, Iranian air defenses successfully targeted an American F-35; the fate of the aircraft remains unknown, but the incident itself underscored the reality that the F-35's vaunted stealth could not guarantee its safety in Iranian skies.
The distinction between detection, tracking, and a genuine fire-control-quality lock is critical. A radar or infrared sensor might detect something anomalous without knowing precisely what it is, or maintain an intermittent track without the positional accuracy to guide a missile.
Establishing a weapons-quality track requires a far more demanding achievement: the creation of a stable, reliable, and sufficiently accurate track that the F-35 crew considered continued exposure to the system unacceptable.
When such a lock is achieved, the aircraft's sophisticated warning systems indicate that the probability of engagement has increased significantly, forcing the pilot to alter course, abandon the mission, or leave the threatened airspace.
The methods by which Iranian air defenses achieved this lock are particularly noteworthy. While the F-35 is specifically optimized against radar detection, infrared sensing operates according to a different physical principle.
Every aircraft produces thermal radiation from its engines, exhaust, aerodynamic heating, and other sources.
Iranian air defenses have, especially since the 40-day war, demonstrated the ability to employ passive infrared sensors that can detect an aircraft without transmitting electromagnetic energy toward it, creating a fundamentally different problem for the attacking aircraft.
Conventional radar can reveal itself by transmitting, but a passive infrared sensor does not have that same electromagnetic signature.
Integrated air defense architecture
The Iranian military breakthrough was not the result of a single spectacular radar but rather the culmination of an integrated air-defense architecture that networks multiple sensors, command systems, and weapon platforms.
An integrated system can potentially combine information from several different sensors: one system might provide a broad-area indication, another could refine the location, a passive electro-optical or infrared sensor could contribute target classification, and electronic-support sensors could detect emissions associated with the aircraft or supporting forces.
The result can be a track whose quality is considerably greater than that obtainable from any individual sensor. This networked approach is particularly effective against stealth aircraft.
The F-35's advantage comes partly from being able to combine information from many sources and give the pilot a coherent picture of the threat environment.
Iran's equivalent objective is to construct a distributed sensor network that an aircraft cannot defeat by merely reducing its radar cross-section.
The ability to combine information from multiple sources, including passive infrared sensors, radar systems, and electronic intelligence, creates a detection architecture that can overcome many of the advantages of low-observable aircraft.
The psychological and operational effects of achieving an F-35 lock cannot be overstated. The F-35 has acquired an almost symbolic status in discussions of fifth-generation airpower, and compelling such an aircraft to leave an engagement area has significant implications beyond the immediate tactical event.
It demonstrates that Iranian air defenses can contest American fifth-generation aircraft, forcing them to operate farther away, employ different routes, use additional electronic warfare support, and rely more heavily on stand-off weapons.
Even without shooting down an F-35, consistently forcing them to retreat effectively denies them their mission objectives and debunks the myth of the fighter jet being undetectable.
Operational context
The events of July 31 occurred during a broader Iranian response to American attacks on southern Iran. The United States had targeted, among many military installations, a residential home on Qeshm Island in Hormozgan province, killing three people, including a child.
Iranian armed forces responded with combined missile and drone strikes on American bases across the region, including locations in Jordan, Kuwait, and the United Arab Emirates.
The air defense successes against the MQ-9 and F-35 were part of this broader retaliatory campaign, demonstrating Iran's ability to challenge and decimate American air power while simultaneously striking ground targets across the region.
The location of these engagements – whether over the Persian Gulf or the Gulf of Oman – reflects the strategic importance of Iran's coastal defenses and the integrated nature of the country's air defense network.
The MQ-9 Reaper was destroyed over the Strait of Hormuz, a waterway where American drones have been heavily used for surveillance and where Iranian air defenses have been particularly active.
The F-35 engagement occurred in a similar context, with the stealth aircraft attempting to operate in a heavily defended environment in the Persian Gulf waters.
And these developments unfolded immediately after the US military aggression against multiple places in southern Iran, without mentioning the downing of MQ-9 or the locking of the F-35.
Around the same time, the Trump administration was under fire over its handling of reports that numerous US service members had been wounded in an Iranian strike on a US military base in Kuwait and had gone more than a week without receiving hospital treatment.
Future of the air-defense contest
The Iranian achievements on the night of July 31 – which haven’t been reported before – represented a significant milestone in the ongoing air-defense contest. However, they should be understood as part of an evolving dynamic rather than a final resolution.
According to military experts, the glass ceiling has been broken in every sphere since the third imposed war. The “invincibility” myth has been completely shattered by both Iranian precision missiles and advanced air defense systems.
The economic dimension of this contest is also significant. The F-35's ultimate value is not simply its ability to survive but its ability to accomplish assigned missions inside hostile airspace.
If Iran can consistently prevent those missions from being carried out, it has achieved a form of air-defense success that does not require a single aircraft to be shot down.
The cost-imposition strategy, where expensive American aircraft and weapons are neutralized by relatively cost-effective Iranian defense systems, represents a fundamental strategic challenge for American military planners.
The events of July 31 yet again demonstrate that Iran has developed an integrated counter-stealth capability capable of imposing operational restrictions on some of the world's most sophisticated combat aircraft.
The value lies not merely in the symbolic fact that Iran can detect stealth aircraft but in the possibility that Iran has created a functioning sensor-to-shooter network capable of denying access to fifth-generation aircraft.
This represents a significant evolution in the regional military balance and a testament to the capabilities of Iran's domestic defense industry.
