F-35B Has Flown With Meteor Long-Range Air-To-Air Missile

By The War Zone | Created at 2025-02-28 18:11:15 | Updated at 2025-03-04 08:33:29 3 days ago

For the first time, an F-35B has flown armed with the Meteor beyond-visual-range air-to-air missile. Test flights with the missile were a long time coming, but they will pave the way for a major leap in capability for the stealth fighter. British and Italian F-35s will eventually combine the ramjet-powered missile with enhancements under the Block 4 upgrade, including for the aircraft’s radar, which will make the Meteor an even more potent addition to their armory.

The U.K. Royal Air Force announced today that an F-35B has made the first test flights with inert Meteor missiles. The F-35B used was a U.S. Marine Corps example from the Integrated Test Force at Naval Air Station Patuxent River, Maryland. So far, “multiple sorties” have been carried out to gather environmental data as part of the campaign to integrate the Meteor onto the F-35. According to captions provided with related imagery, the first Meteor sortie was flown by F-35B test aircraft BF-18, piloted by Royal Navy Lt. Cdr. Nicholas Baker, on November 20, 2024.

BF-18 Flt 640 piloted by Royal Navy Lt Cdr Nicholas Baker flies with a Meteor missile on F-35 for the first time, 20 November 2024 from NAS Patuxent River, MD, USA.

Photos published by the Royal Air Force show the Meteor — which has cropped fins for internal carriage — inside one of the two weapons bays of the F-35B, alongside an AIM-120 AMRAAM. The latter weapon is the F-35’s current standard beyond-visual-range air-to-air missile, and the Meteor was designed from the outset to have better range and overall kinematic performance than the U.S.-made missile.

In a media release, Air Commodore Al Roberts, the Royal Air Force’s Head of Air-to-Air Missiles, said:

“This milestone is a testament to the effective collaboration between the multinational governmental and industrial partnerships that we have in place. Inclusion of Meteor onto the Lightning II will bring this formidable air combat capability to the U.K. and to the burgeoning F-35 community, significantly enhancing security among allies.”

Eventually, the Meteor will be used by the short takeoff and vertical landing (STOVL) F-35B flown by the United Kingdom and Italy, as well as the conventional takeoff and landing (CTOL) F-35A operated by Italy. The fighters will carry a maximum of four Meteors, all internally, preserving the aircraft’s stealth characteristics.

In January 2024, the U.K. Ministry of Defense confirmed plans to integrate the Meteor — as well as the SPEAR 3 precision standoff air-to-ground munition — on U.K. F-35Bs “by the end of the decade.”

Previously, the U.K. government had said that British F-35Bs would be armed with Meteor by the “middle of this decade,” while a date of 2027 at the earliest had also been given in a government report dated February 2022.

The Meteor, which is already in service on British Eurofighter Typhoons and which completed operational testing and evaluation (OT&E) on Italian Eurofighters in late 2023, is a weapon that TWZ has discussed in detail in the past.

The standout feature of the Meteor is its novel propulsion system, based on a solid-fuel, variable-flow, ducted rocket — better known as a ramjet. This kind of motor can be throttled during different phases of flight. This means it still has sufficient energy during the terminal attack — when traditional air-to-air missile motors are normally losing energy and, therefore, agility.

Thanks to its propulsion system, the Meteor’s all-important ‘no-escape zone’ is much larger than for comparable weapons. This means the enemy’s chance of evading the missile at the endgame of the engagement, using high-energy maneuvering, is considerably reduced. Another advantage of the being able to throttle the motor is that the Meteor’s autopilot can calculate the most efficient route to the target for very long-range shots.

As with most contemporary air-to-air missiles, the maximum range of the Meteor is a closely guarded secret. However, most sources agree that it can likely engage targets out to around 130 miles from its launch platform. Whatever the case, like any air-to-air missile, its range is highly dependent on a variety of factors, including the track of the target and the height and speed of the launch aircraft.

The Meteor Beyond Visual Range Air-to-Air Missile (BVRAAM) is displayed outside the MBDA exhibition hall during the Farnborough International Airshow 2022 on July 19, 2022 in Farnborough, England. Farnborough International Airshow 2022 will host leading innovators from the aerospace, aviation and defence industries. (Photo by John Keeble/Getty Images)

Along with its ramjet motor, the Meteor boasts a two-way datalink, supplementing the missile’s active X-band radar seeker. The datalink provides the missile with inflight updates as it flies out to the target, feeding it mid-course guidance updates from third-party sources as well as from the launch aircraft. Meanwhile, the pilot in the launch aircraft can use the datalink to get information on the Meteor’s fuel, energy, and tracking state. That can help determine if and when to fire another, disengage, or even assign a different target of opportunity.

All of this makes the Meteor a formidable weapon for a fourth-generation fighter, but it will really come into its own when integrated with the F-35.

To start with, the F-35 has an unrivaled sensor suite, meaning it can provide more accurate and timely targeting data to the Meteor. At the same time, thanks to the Meteor’s datalink, the missile can also receive mid-course updates from other sources. In fact, the F-35 might not need to use its radar at all to engage the target, meaning it can maximize its stealth attributes. It should be noted that the AIM-120D AMRAAM also has a two-way datalink with third-party targeting capabilities, although it lacks the performance advantage conferred by the ramjet motor.

It can be easily imagined how, using its low-observability characteristics, powerful integrated sensors, and advanced networked information systems, the F-35 can go into aerial combat and ‘see and not be seen.’ The Meteor will meanwhile allow it to engage aerial targets at very long range, including destroying hostile aircraft long before they even know that a hostile fighter is present. Holding the enemy at risk at longer range is becoming more important as advanced infrared search and track (IRST) systems — which are notably aimed at detecting stealthy aircraft — improve and proliferate. .

The Meteor is intended to harness the improvements that the F-35 will bring as part of a massive upgrade initiative known as Block 4. Central to the enhancements is a new multifunction active electronically scanned array (AESA) radar designated as AN/APG-85, which will be coupled with advanced electronic warfare capabilities. The new radar should be able to engage targets at significantly greater ranges and provide improved resolution. This should really come into its own in the kinds of long-range engagements for which the Meteor is optimized. The upgrade will also include a huge enhancement to the F-35’s already potent electronic warfare system, and it will address the F-35’s Distributed Aperture System (DAS) and Electro-Optical Targeting System (EOTS). The EOTS provides an infrared search and track functionality, which is set to be drastically improved as part of the Block 4 upgrade.

Confusingly, while the United Kingdom in 2023 said it planned to retrofit Block 4 across its entire F-35 fleet, as well as incorporate new build examples of the aircraft acquired in the future, it had previously hinted that only a portion of the existing fleet might undergo the upgrade. Regardless, it’s not entirely clear how realistic — or affordable — it would be to integrate Block 4 and the related hardware and software for some of its earliest deliveries. Nevertheless, to provide for the integration of Meteor (as well as SPEAR 3 and the penetrator version of the Paveway IV), the Block 4 upgrade will be necessary.

In fact, delays to Block 4 have very likely impacted the timeline for introducing Meteor to operational F-35s, which has slipped to the right.

After all, Block 4 relies upon a new suite of hardware and software, known as Technology Refresh-3 (TR-3), which modernizes the F-35’s core processor, memory unit, panoramic cockpit display system, and related avionics. TR-3 has been billed as the F-35’s new ‘computer backbone,’ since it promises to provide 25 times more computing power than the existing TR-2 computing system, but its development has been dogged by problems. These issues left new F-35s being parked up and not delivered after they were built, a situation that lasted for roughly a year.

Adding the Meteor to the F-35 reflects broader trends in aerial combat, stressing the value of increasingly long-ranged air-to-air missiles. The United Kingdom is already looking at a Meteor successor for its future Tempest combat aircraft, while, in recent months, the U.S. Navy has introduced, at least on a limited level, an air-launched version of the Standard Missile-6 (SM-6) under the AIM-174B designation.

Of immediate relevance to the F-35 is another long-range air-to-air missile, the AIM-260, also known as the Joint Advanced Tactical Missile (JATM). The JATM, details about which are still highly classified, is expected to ultimately supplant the AMRAAM, and, crucially, the F-35A and F-35C should be able to carry six examples.

All these developments are being driven primarily by the emergence of ever more capable very long-range air-to-air missiles in China and Russia.

Meanwhile, for the United Kingdom in particular, there are also questions about how many F-35s they will actually buy.

Before the end of this year, the United Kingdom is set to receive the last deliveries from its initial order of 48 aircraft, known as Tranche 1.

Originally, plans called for a total of 138 F-35Bs, although consistent budgetary concerns have led to an apparent rethink, and there now seems little prospect that this will be realized.

There are meanwhile plans to place a Tranche 2 order for 27 F-35Bs, which will provide a total fleet size of 74 aircraft, although this is still to be signed off. Regardless, a fleet of around 74 is the bare minimum needed to properly meet aspirations for the U.K.’s carrier-based air wing.

Beyond that, however, the U.K. Ministry of Defense has urged caution, saying only that it remains open to the possibility of purchasing further F-35s beyond the 74 now specified.

However many F-35s the United Kingdom eventually buys, the forthcoming introduction of the Meteor will bring a significant boost to the stealth fighter’s already impressive air combat capabilities.

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