fighter

Imagery has emerged that appears to show a previously unknown two-seat version of the Sukhoi Su-57 Felon, Russia’s most modern and capable fighter. Provided the available photo is legitimate, and there is nothing obvious to suggest otherwise, at this point, the Russian development would parallel China’s work on a two-seat version of the stealthy J-20. While the exact role of China’s two-seat J-20S remains the subject of debate, it is noteworthy that Russia’s use of dual-seat tactical jets is well-established, as is China’s, and that Sukhoi had previously drafted a two-seat Felon specifically for an Indian requirement.

The apparent first publicly available photo of the two-seat Su-57 appeared on the Fighterbomber Telegram channel, which has close ties to the Russian Aerospace Forces. The same account claims that the aircraft is now undergoing taxi trials.

The most prominent modification to the aircraft is a redesigned forward fuselage, with a tandem two-seat cockpit that is broadly similar to that on the Su-30 Flanker family and on the two-seat Su-27UB Flanker-C. As on the Su-30, the rear seat is positioned significantly higher than the front one, providing a much better view forward from the rear cockpit.

The background of the photo has been blurred, so the location cannot be identified. Typically, tests of this kind would take place at Zhukovsky, near Moscow, the major hub for Russian experimental aerospace testing.

Some reports suggest that this new version of the Felon is designated Su-57D or Su-57UB, but this remains unconfirmed. In a Russian aerospace context, the suffix D would normally denote long range, while UB signifies a combat trainer.

There have been suggestions that the two-seat Su-57 might have been built using an existing single-seat Felon airframe, namely one of the prototypes, T-50-5R.

With no previous reports that Sukhoi was actively working on a two-seat version of the Su-57, the aircraft’s appearance now is all the more intriguing.

However, back in 2023, details of a patent emerged for a “multifunctional two-seat low-observable tactical aircraft,” with plans published showing a two-seat Su-57. According to Russian media reports, the planned two-seat aircraft is intended for “acting as an airborne command post for network-oriented operations of mixed groups of aircraft.” This is a concept that actually dates all the way back to when the Su-30 was first drafted at the end of the Soviet era. At the same time, the patent points to the utility of such an aircraft for crew training. Regardless, the accompanying illustration looks very similar to the two-seat Felon we see in the image from Fighterbomber.

As far as the Russian Aerospace Forces are concerned, only 76 Su-57s (presumed to be single-seaters) are on order. This is a surprisingly low number, with Moscow instead having chosen to invest in the cheaper and well-proven Su-35S and Su-30SM/M2 families of tactical fighters. The Su-57 first appeared, then in T-50 pre-production form, a decade and a half ago.

The idea that Russia might be seeking a combat trainer to help convert pilots to the Su-57 seems very unlikely, especially considering the small number of frontline Felon fighters currently planned. Stealth fighters have dropped the two seat trainer companion concept from the Cold War era. The extreme focus of signature control, high cost of the aircraft, higher levels of automation, as well as enhancements in simulated training over the years, have spurred this.

It may be that Sukhoi is seeking to promote a two-seat combat version of the Su-57 as a direct successor to the twin-seat Su-30SM/M2. These aircraft are widely used by the Russian Aerospace Forces for both long-range air defense and ground attack/strike, two roles for which Russia has long prized having an extra crewmember on board.

There is also the fact that the two-seat Su-57 is intended to operate alongside loyal wingman drones, specifically the Sukhoi S-70 Okhotnik-B (Hunter-B) flying-wing uncrewed combat air vehicle (UCAV).

The emergence of crewed-uncrewed teaming will be greatly enabled by a second person acting as a ‘mission commander’ of sorts. In this case, they would occupy the rear seat of the Su-57 and help control uncrewed systems, coordinating tactics with them near the forward edges of the fight. It is in this capacity that the two-seat version of China’s J-20 is widely expected to operate.

There have already been signs that the Su-57 and S-70 programs are directly linked, including ‘loyal wingmen’ cooperative testing. A two-seat Felon would offer a much more suitable platform for this kind of teaming to be taken further. It is perhaps no coincidence that one of the vertical fins of the two-seat Su-57 carries the silhouette of an apparent S-70.

Первый совместный полет БЛА «Охотник» и истребителя Су-57

As well as the S-70, the tail marking also appears to show the Sukhoi Su-75 Checkmate fighter, the S-71 stealthy air-launched missile, and some other kind of munition, perhaps generic.

This marking may well suggest that the two-seat fighter is intended to work in conjunction with all of these platforms, to various degrees, forming a new family of Russian air combat systems. This would be in line with a similar kind of tail markings we have seen on single-seat Felons, including the aircraft that was involved during previous cooperative testing with the Okhotnik-B.

Of course, a two-seat Su-57 would potentially be able to provide the Russian Aerospace Forces with a platform that can undertake all these roles: long-range air defense, ground attack/strike, drone controller, and combat trainer.

The two-seat Felon is very likely also being aimed at the export market. There would also be a precedent here, in the shape of India.

Back in 2003, Russia and India signed a letter of intent concerning the joint development of the Prospective Multirole Fighter (PMF), commonly referred to in India as the Fifth-Generation Fighter Aircraft (FGFA).

In 2010, a contract was signed covering the preliminary design of the PMF, to be jointly developed by Sukhoi and Hindustan Aeronautics Limited (HAL) of India on the basis of what was then known as the T-50 — the prototype of the Su-57 Felon.

Notably, the Indian Air Force wanted a two-seat PMF.

It’s not clear how far Sukhoi progressed on a two-seat PMF to meet the Indian requirement, but the result would have looked very much like the two-seat Felon now apparently under test.

This was all academic, however, since India walked away from the PMF in 2018. This followed an embarrassing incident, in which the fifth prototype T-50 caught fire on the runway at Zhukovsky, reportedly in full view of an Indian delegation.

Nevertheless, Moscow has continued to push the Su-57 for India, as that country struggles with acquiring new advanced fighters and fielding them in the required numbers.

At the same time, Russia has sought to kickstart the Felon program by finding other export customers for the Su-57E version.

So far, only Algeria has confirmed, via its state-run media, that it has bought the Su-57E, as we discussed at the time. It appears that two aircraft have already been delivered to the North African nation, out of a possible total of 14.

That creepy high pitched tone of Algeria’s Sukhoi Su-57E fighter jets. Algeria is currently the only country in Africa to operate 5th Gen stealth fighters. They have already received two Sukhoi Su‑57 aircraft and plans to acquire an additional 12 units. The Algerian Air Force is… pic.twitter.com/QLLDZNhaco

— Defense News Nigeria (@DefenseNigeria) March 16, 2026

Being able to offer a two-seat Felon could well attract more foreign interest, especially customers that might be looking to acquire members of the Su-30 family, or who might be looking to replace these same aircraft.

Potentially, Sukhoi might choose to combine the two-seat Felon with the improvements incorporated in the long-promised Su-57M. Also known as the ‘second stage’ Su-57, the Su-57M would be powered by the new AL-51F-1 (izdeliye 30) turbofan engine, replacing the current AL-41F-1, with increased thrust, lighter weight, and lower operating costs, as well as other advanced features. As you can read about here, Sukhoi has also unveiled a new type of thrust-vectoring engine nozzle for the aircraft, intended to improve the low-observable features of the Felon.

Still, adding another seat to the Su-57 will cause an impact on performance. Range could be decreased due to reduced internal fuel load, and the aircraft’s general performance, including speed and turning capabilities, could also suffer. Its radar signature, especially from the critical frontal aspect, will be affected as well. At the same time, the Su-57 is not a very low-observable aircraft, or even close to it. It was designed around a different philosophy than Western fifth-generation fighter aircraft, which took limitations in low-observable technologies and cost into heavy consideration. You can read more about this here.

The absence of Russian interest in buying more Felons has meant the Su-57M program has progressed only very slowly.

Getting more export customers would provide a huge boost to the Su-57 and would also help the Russian military.

Foreign investment is vital to speed the development of the Felon. The same was true in the late 1990s when India’s purchase of the Su-30MKI Flanker essentially secured the development of the multirole version of this fighter, which was only later acquired by Russia. On the other hand, any export customer would be taking a big risk due to the war with Ukraine and its impact on the Russian aerospace and defense industry, as well as its geopolitical standing.

While we await more imagery and details of the latest iteration of the Su-57 Felon, it is certainly noteworthy that a two-seat version of another fifth-generation fighter now appears to have broken cover.

Contact the author: thomas@thewarzone.com

Shield AI revealed a revised planform configuration and new details about its extremely ambitious X-BAT jet-powered autonomous stealth ‘fighter’ drone at April’s Sea-Air-Space 2026 convention, as detailed by TWZ. At the event, I was able to speak at length with Armor Harris, the chief designer of X-BAT, who was keen to discuss the status of the project. You can read TWZ’s original deep dive exclusive interview with Harris that was published when X-BAT first emerged from the shadows last October here.

The tail-sitting X-BAT, designed to take off vertically and land the same way, is planned to start vertical takeoff and landing (VTOL) testing before the end of this year. Harris explained how it is designed to fly combat missions under the control of the company’s Hivemind artificial intelligence “pilot” and how Shield AI has designed-in payload bays that are roughly the same size as those found on the F-35, which will enable it to carry many of the same weapons as the stealthy crewed fighter.

The X-BAT concept is aimed to disrupt not just the budding advanced autonomous drone marketplace, but parts of the fighter market too. So much hangs on the VTOL element that the airframe is designed around, so to say that a lot is riding on those tests is an understatement.

Here is the full interview from the show floor at Sea-Air-Space:

Meet The Man Behind The X-BAT Autonomous VTOL Fighter Drone

Driven by a race to get ahead of quickly evolving enemy capabilities, the U.S. Navy is now aiming to enter the next step of contracting for its 6th-generation crewed fighter – known as F/A-XX – by August. Despite intervention from Congress, the next-generation carrier-based fighter has remained in limbo since the Pentagon moved to effectively shelve the program last year.

That’s according to Chief of Naval Operations (CNO) Adm. Daryl Caudle, who spoke with reporters Monday at the Sea-Air-Space 2026 exposition near Washington, D.C. In response to a question from TWZ, Caudle acknowledged the uncertainty that has kept F/A-XX in a holding pattern, even as the Air Force’s future fighter, dubbed the F-47, has forged ahead. The current competitors for the F/A-XX are Boeing, which is also the F-47’s prime contractor, and Northrop Grumman.

“One of the challenges we’re seeing is, not only [are] our peer competitors improving their capability for anti-air, either air-to-air or surface-to-air, but the lower cost of entry of very capable weapons is also making more players on the field in which that level of stealth and technology is required,” Caudle, the Navy’s top officer, said. “So this is not about the need for a peer adversary. This is just having an aircraft that can operate with a level of uncertainty and with the acceptable level of risk.”

This is in line with arguments Caudle made in favor of moving ahead of F/A-XX in January, where he cited growing threats posed by smaller nation-state adversaries, including Iran, as well as non-state actors.

Today, Caudle again emphasized that he nevertheless had been “very vocal” on the need for a carrier-based next-generation fighter, and had expressed “many times” to Deputy Secretary of War Steve Feinberg that the service had to secure the aircraft. It’s important, Caudle said, for both the future carrier air wing and collaboration and planning with the MQ-25 Stingray, the Boeing-made carrier refueling drone set to reach initial operational capability later this year.

“It ties to our MQ-25 for stealth refueling. It ties to our reach. It ties to the work we’re doing for making the carrier air wing something that remains very effective into the future based on the range in which you can operate safely,” Caudle said. “So the need’s clearly there.”

MQ-25A Stingray first taxi test

While it was recently reported that the Navy, bolstered by funding from Congress for the new F/A-XX, planned to award a contract for the program by year end, Caudle said August was now the likely timeframe.

As noted, the Pentagon had moved to essentially shelve F/A-XX in its Fiscal Year 2026 budget request, with the Navy only requesting a relatively meager $74 million for the program. U.S. officials said at the time this decision had been driven largely by concerns about the ability of the U.S. industrial base to support work on two sixth-generation fighters, the other being the F-47, simultaneously.

Congress subsequently interceded, appropriating $1.69 billion for F/A-XX through a combination of regular spending bills and the One Big Beautiful Bill Act. From a budgetary perspective, the Navy’s next-generation fighter program remains well behind the F-47, which has already received billions in funding and could be in line to get approximately $5 billion more in Fiscal Year 2027. The Navy only appears to be requesting an additional $140 million for its new carrier-based combat jet in the $1.5 trillion proposed defense budget for the next fiscal cycle.

“We’ve got a lot of airframes out there. We’ve got an F-35 program. We’ve got a F-47 program. You know, we’re still building the [F/A-18 Super Hornet] … there’s a lot of airplanes being built,” Adm. Caudle said today. “The Air Force has got a lot of demand on the system. The Navy’s got a lot of demand … One of the contractors who would make this plane for us is in a place where they really can’t deliver in the timeframe we need it. So there was, you know, a check twice, cut once, kind of mentality here on this decision. And now there, I think we’re all on the same page on the reason why the hard look needed to be done. I’m good with it.”

As noted, Boeing and Northrop Grumman are in competition to produce the F/A-XX, a program that first took shape as a Navy request for information in 2012. An earlier down-select reportedly eliminated Lockheed Martin in March 2025. Last August, Northrop Grumman released a rendering of its concept for the aircraft, showing a streamlined nose and landing gear on the front of a carrier with the tagline, “Project Power Anywhere.” Boeing’s concept, released the same month, drew visual comparisons to its F-47 Next-Generation Air Dominance fighter for the Air Force.

Citing classification, Adm. Caudle said today he couldn’t provide any information on design or payload details that give the Navy confidence in pursuing F/A-XX despite the adversary threats he mentioned. However, he suggested speed was increasingly essential to having a chance at maintaining overmatch.

“We monitor very closely, red-team that very hard, and assess that threat with a predicted trajectory of whether or not the existing designs we’ve seen will still overmatch that,” he said. “So I think we’re okay there, but we do know that our existing airframes could become vulnerable to some of those threats by the time [it’s fielded] … because it takes time to deliver that, that our existing airframes could be vulnerable to some of those threats, and we want to make sure the air wing of the future can still participate.”

Despite Caudle’s comments today, it should be remembered that this is not the first time that major progress on the Navy’s next-gen fighter has supposedly been imminent. Last October, Reuters reported the program had been greenlighted by Secretary of War Pete Hegseth, with a contract expected to follow in short order. 

Aside from funding moves from Congress to ensure the survival of the F/A-XX program, no public steps have been taken to advance the program since.

Contact the editor: Tyler@twz.com

On the same day that the Chief of Naval Operations answered our question about the future of the F/A-XX sixth-generation naval fighter program, stating a final selection between the offerings from Boeing and Northrop Grumman will be coming in August, the latter of the two firms has released a new teaser video. Previously, we only had one rendering of Northrop’s notional F/A-XX concept. Now we have a more detailed panning video and a new head-on perspective view.

The video clip, posted on Northrop Grumman’s X account this evening, as seen below, states: “We’re bringing tomorrow’s horizon into focus, faster, stronger, and ready when the warfighter needs it.”

What we see in the clip is the same general design we saw in the still image earlier, but much more of it. This includes a head-on shot, showing the aircraft’s stealthy and efficient tailless design and rear-set dorsal inlets, as well as its very broad nose and canopy.

The aircraft in the new stylized video clip has some interesting proportions. The size of the landing gear and especially the canopy give it something of a smaller overall appearance than what one would expect from a heavy sixth-generation naval fighter that will be stuffed with fuel and weapons. Of course, this could be due to the somewhat ‘cartoonish’ nature of this new glitzy clip, and how accurate this rendering is to the actual Northrop Grumman F/A-XX is still unknown. At the very least, some of the aircraft’s features (such as its inlets) will have been significantly changed for security issues pertaining to its sensitive design elements.

We also see the wings, which look like they have a bit of camber on the outer sections and possibly a bit of ‘crank’ too. We also see the wings folded in the first part of the clip.

What could be a weapons bay with its doors open is also visible in some of the angles seen in the clip. At first glance, this appeared to be for the jet’s very stout-looking landing gear, but they are curved inward. There are additional doors on the centerline, as well, pointing to two separate bays.

Overall, because of the size of the canopy, it is hard to tell if this is a single-seat or a two-crew aircraft. The canopy is so large in these renders that a side-by-side crew arrangement may even be possible, although that seems unlikely.

Once again, we don’t know how close this computer-generated model is to the real thing, but considering this aircraft will have to carry a sizable weapons load and have something approaching a combat radius of 1,000-miles, while still fitting well within the confines of a supercarrier, it should be firmly in the heavy fighter class.

Maybe Northrop Grumman will share more on its F/A-XX at the annual Sea-Air-Space convention in Washington this week, and we will be ready to report it from the scene if they do.

We have reached out to Northrop Grumman with questions, and we will update this post if we hear back.

Contact the author: Tyler@twz.com

Two cabinet-level ministers in Peru have resigned after interim President Jose Maria Balcazar announced he would defer a decision to buy F-16 fighter jets from the United States company Lockheed Martin.

Defence Minister Carlos Diaz and Foreign Minister Hugo de Zela cited their opposition to the move in their resignation letters on Wednesday.

“A strategic decision has been taken in the area of national security with which I have a fundamental disagreement,” Diaz wrote.

The fighter jets have long been a source of controversy in Peru, where critics have questioned whether the purchase is a sign of deference to US President Donald Trump.

Last week, the left-wing Balcazar — Peru’s ninth president in a decade — announced he would leave the decision about whether to invest $3.5bn in the purchase to the country’s next elected leader.

Balcazar himself had only been in office since February, selected by Congress to replace the latest in a string of impeached presidents.

Last week, he abruptly cancelled a signing ceremony for the F-16 deal, which would have seen an initial batch of 12 new planes added to Peru’s ageing air force. The country aims to acquire 24 jets overall.

Balcazar explained he was not pulling out of the deal, but that he felt the next presidential administration should be involved in making such a hefty financial commitment.

“For us to commit such a large sum of money to the incoming government would be a poor practice for a transitional government,” Balcazar said at the time.

“We remain firm in respecting all agreements that may have been reached at the level of the armed forces, or in this case, with the relevant ministry of the air force, to carry out the corresponding negotiations.”

His decision, however, was met with pushback, both domestically and from the US. The US ambassador to Peru, Bernie Navarro, responded on April 17 with a warning posted on social media.

“If you deal with the U.S. in bad faith and undermine U.S. interests, rest assured, I, on behalf of
[President] Trump and his administration, will use every available tool to protect and promote the prosperity and security of the United States and our region,” Navarro wrote.

Critics of the deal, however, have argued that Peru has received more competitive offers from French and Swedish aircraft makers like Dassault Aviation and Saab AB, respectively.

But Navarro on Wednesday denied that the US had been outcompeted. In a statement, he wrote that the “bid was made at a high level of competitiveness” and called the plane fleet “the most technically advanced fighter jets ever built”.

He also denounced the delay as an unreasonable stoppage on a deal he characterised as already signed.

“In planning the delivery of a product of this calibre, there is no such thing as an inconsequential delay,” he wrote.

“Every delay results in significant costs. The same package cannot be available in a couple of months, or even weeks.”

The decision to spend the $3.5bn on 24 fighter jets was made in 2024 under former President Dina Boluarte. The purchase was to be financed by $2bn in domestic borrowing in 2025 and $1.5bn in 2026.

In September, the US Department of Defense approved a potential sale of F-16s to Peru.

But Boluarte was removed from office in October, and her successor, Jose Jeri, lasted just four months in office before he too was impeached.

The instability in Peru’s presidency comes at a time when the Trump administration is seeking greater influence over Latin America, as part of what the US president has called his “Donroe Doctrine”.

Already, the Trump administration has pushed Peru to distance itself from Chinese investment. In February, for instance, it publicly protested against Chinese ownership in the Pacific port of Chancay.

“Peru could be powerless to oversee Chancay, one of its largest ports, which is under the jurisdiction of predatory Chinese owners,” the Trump administration wrote in a social media post.

“We support Peru’s sovereign right to oversee critical infrastructure in its own territory. Let this be a cautionary tale for the region and the world: cheap Chinese money costs sovereignty.”

Just this week, one of Trump’s allies, Representative Maria Elvira Salazar, warned that the Chinese-owned port was a danger to the US.

“That’s a direct threat in our hemisphere, right in the country of Peru,” she told a congressional committee. “For that reason, the new Peruvian government, which will be elected next June, must take it back.”

She added that, if the Peruvian government responded accordingly, “the United States will help them under the Trump administration”.

The country, however, is enmeshed in a messy presidential race replete with vote-counting delays and accusations of malpractice.

Election experts have said there is no evidence of voter fraud. But the slow vote count has left the race’s outcome undetermined, more than a week after the ballots were cast on April 12.

Right-wing leader and former First Lady Keiko Fujimori is all but assured of progressing to a run-off in June. But who will join her is uncertain.

Left-wing Congress member Roberto Sanchez is currently in the lead in the race for second place, with 12 percent of the votes tallied, but far-right candidate Rafael Lopez Aliaga, a former mayor, is close behind with 11.9 percent. Lopez Aliaga has been a vocal supporter of the Trump administration.

The final vote count for the first round of the election is expected to be delivered in May.

Traditionally, Peru’s new president should be sworn in on July 28, the country’s independence day.

Shield AI and General Electric have revealed more details about X-BAT, the jet-powered autonomous stealth ‘fighter’ drone designed to take off vertically and land the same way, tail first, after completing its mission. With the extremely ambitious aircraft concept planned to start vertical takeoff and landing (VTOL) testing before the end of this year, the companies have also shown off a roughly half-size model that includes significant design changes.

The new details came when officials — J.J. Cummings and Armor Harris from Shield AI, and Steve Russell from GE’s Edison Works — spoke with reporters, including The War Zone, at the Sea-Air-Space 2026 exposition near Washington, D.C.

Make sure to get up to speed on everything we previously knew about X-BAT in our exclusive feature from when the aircraft was unveiled, linked here, as well as its forthcoming flight testing here.

A major redesign

When we discussed the X-BAT in our in-depth coverage of the program in the past, the drone had a ‘cranked kite’ planform, which has now given way to a straight leading edge with a more dramatic sweep as part of a distinctive arrowhead-shaped profile. We saw the same on the Boeing X-45C Phantom Ray UCAV prototype, and it has since been adopted by the Chinese GJ-11 Sharp Sword, among others. This new configuration looks better optimized for higher-speed flight.

According to X-BAT’s chief designer, Armor Harris, “We’ve taken an iterative approach to development and made improvements to the design based on test data.”

Raiding the past to realize the future

Of all the new details we received about X-BAT, where the jet’s critical thrust vectoring capability will come from is perhaps the most intriguing. GE says that the engine nozzle is the Axisymmetric Vectoring Exhaust Nozzle (AVEN), which comes from a specialized thrust-vectoring F-16 that was tested out of Edwards Air Force Base, California, back in the 1990s. The AVEN nozzle — taken direct from the warehouse, “Indiana Jones-style,” according to the officials — will be used for the initial testing.

F-16 MATV Axisymmetric vectoring in the early 1990’s.

Multirole platform: including tanker

Officials confirmed that the X-BAT can be operated as a tanker, making use of its two external hardpoints. Both of these are plumbed to the internal fuel tanks, so they can support ‘buddy’ refueling pods, which trail a hose and drogue.

The companies stress that aerial refueling tanker is “definitely not a primary mission,” but this option does reflect the multirole nature of the platform. Meanwhile, drone tankers are a growing area of interest for different U.S. military services, with efforts currently spearheaded by Boeing’s MQ-25 Stingray, although, since it is larger than the X-BAT, this would also offer much greater internal capacity.

For expeditionary operations, in particular, drone tankers are seen as a viable solution, although by no means the only one. X-BAT acting as a launch tanker could be especially of interest for tactical jets that require long runways. This would allow them to takeoff in short distances with heavy weapons loads and get fuel immediately from the X-BAT tanker before heading on their missions. X-BAT tankers could also act as unpredictable refueling platforms that are forward deployed for enroute combat aircraft, launching from virtually anywhere to refuel jets making their way from longer distances to their target areas. These are just some of the less traditional theoretical ways a tanker-configured X-BAT could be used.

Interestingly, based on the current concept of operations, Shield AI sees less interest in having the X-BAT take on fuel while airborne itself, although there is a “holding place” for a refueling probe in the nose, if required.

Overall, and beyond tanking, the X-BAT’s multirole capability implies “significant air-to-ground capability, maritime strike capability, and electronic warfare capability,” Shield AI says.

GE F110 engine

Last year, TWZ broke the news that General Electric was working with Shield AI on the powerplant side of the X-BAT, specifically its F110 turbofan, the same as used in many F-16s and F-15s. The choice of the F110 was driven by size and thrust requirements, including the demanding VTOL cycle that’s at the heart of the X-BAT concept.

Significant thrust is also a prerequisite of the X-BAT’s multirole capability, which Shield AI says sets it apart from other Collaborative Combat Aircraft (CCA) and uncrewed combat air vehicle (UCAV) type drones now flying or in development.

X-BAT: Earth Is Our Runway

As well as offering what Shield AI describes as the best power-to-weight ratio in its class, the F110 was selected for its fuel economy. The engine is also widely available. With roughly 3,400 in the world, several “certified pre-owned engines” have been obtained for the program, as well as new-build ones.

While the partnership between Shield AI and General Electric was announced relatively recently, they have been working together for longer, with “tremendous progress on adapting the F110 engine” made in the last six to 12 months, according to officials.

Payload and range

According to Shield AI, X-BAT is around twice the size of all the other CCAs that are on the market today, which allows it to have a pair of payload bays that are roughly the same size as those found on the F-35. This means that any store that fits in an F-35 can theoretically also be accommodated internally in an X-BAT. These presently include 2,000-pound-class weapons.

At the same time, the X-BAT “goes twice as far” as an F-35, meaning double the combat radius. The drone’s manufacturers give a combat radius figure of 1,000 nautical miles. In the past, Shield AI told TWZ that the drone would also have a maximum range of 2,000 nautical miles and a service ceiling of around 50,000 feet.

Of course, the aircraft’s weight is a major factor in providing range. Company officials say they are “not really doing anything super-novel on the design of the air vehicle” in terms of weight reduction. However, with no landing gear and no auxiliary power unit (X-BAT uses an external lithium-ion battery pack to start the engine), and with other items moved from the air vehicle to the trailer-based launch recovery vehicle, all of this helps make the drone lighter.

VTOL flight profile

For vertical takeoff, the F110 engine is put into afterburner to get the required thrust-to-weight ratio needed for takeoff, although the aircraft returns to land on military power (without afterburner).

Various modifications are needed to the F110 for use in a vertical takeoff application: as a tail-sitting aircraft, the X-BAT spends a lot of its time in this attitude. As such, the engine has been exposed to significant subscale and full-scale testing at GE facilities. Shield AI says it plans to build the prototype aircraft at a facility in Frisco, Texas, this summer.

Interestingly, one important part of the tests so far has been to explore just how far the F110 can be throttled back for the delicate VTOL and transition phases. Previously, the limits were set by the cabin pressurization requirements of crewed aircraft: essentially, how much fan speed was needed to generate enough bleed air to pressurize the cabin for the pilot. Since the X-BAT is uncrewed, the F110 can be throttled back farther and operate in different regimes.

Thrust-vectoring nozzle

While the aforementioned AVEN nozzle will be used for the initial testing, the companies are meanwhile working on redesigning and updating the design and building more nozzles. The control system and software are also completely different from those used on the original AVEN and are tweaked to work with today’s F110.

“It actually has worked really well,” Steve Russell says of the nozzle. “We’ve done testing where we’ve reversed it, we’ve integrated it, we’ve run the control system … you put all those things together and put it into such a cool platform that’s really going to present a unique dilemma for our potential adversaries.”

So far, testing has shown that the rigors of VTOL actually result in less fatigue and vibration compared to a typical F-16 profile.

The current nozzle doesn’t have low-observable (LO) attributes, but that is something that will be introduced after prototype testing. There is also the possibility of the X-BAT vectoring its nozzle in forward flight to increase its agility. The companies stress that this capability will depend on customer requirements, but the nozzle will be fully vectorable across the flight regime.

The focus for now is more about actuation and integration of the F110 with the Shield AI airframe and flight control system. A key factor is mitigating against exhaust gas ingestion and ensuring the engine is fed with clean air during the transition phases of flight. However, this is not something the developers are overly concerned about, and the F110 is also judged particularly stall-resistant.

Air intakes and blast deflector

Shield AI’s air intake system is specifically engineered to handle these demanding phases of flight and includes an auxiliary inlet on the back of the aircraft. This is concealed beneath a panel when the aircraft is not in VTOL mode.

Just as important is the engine exhaust, especially when it comes to mitigating the risk of foreign object damage (FOD) and kicking up debris that could damage other assets on the ground during VTOL operations. This would be especially critical on the tight confines of a ship’s flight deck.

For the launch, a blast deflector built into the X-BAT’s custom trailer is designed to direct the exhaust plume away rather than recirculating it back to the engine. The fact that the aircraft is suspended relatively high in the air for takeoff means that the issue of rocks and other debris being kicked-up at the aircraft is reduced. The deflector also channels the blast in a known direction.

For the landing phase, the aircraft’s approach profile helps avoid FOD and exhaust gas ingestion. Instead of coming straight down to land, the X-BAT approaches the launch-recovery trailer from the side, makes contact with it, and then powers up into a latch that secures it. The aircraft also leans slightly into the incoming airstream to help ensure the intake is always being fed with cleaner air.

Open system architectures

With open system architectures baked into the design, it should also be easier to upgrade the X-BAT than previous aircraft, meaning it is getting “a lot closer to plug and play.” Shield AI talks about swapping in and swapping out different radiofrequency and infrared sensors for upgrades or potentially for different missions.

The companies remain generally tight-lipped about the electronic warfare (EW) packages that will be installed in the X-BAT. They did say that the EW gear will be unique to this aircraft and that they were able to leverage a lot of the sixth-generation systems that have been developed for the NGAD programs, in both their Air Force and Navy iterations.

Testing pathway

Looking in more detail at what comes next for the program, Shield AI and General Electric confirm that the first stage of testing is already underway, using the adapted F110 on GE test stands. Step two will see the propulsion system integrated into the prototype aircraft. It will then be run horizontally and then vertically, while still attached to the launch-recovery trailer.

The next step will involve a very large crane, which will hold the aircraft vertically, with engine tests being run while the X-BAT is tethered for safety. This phase will see the propulsion system tested in proximity to the ground, in proximity to the launch and recovery trailer, and under different inlet conditions.

The final step will see the tether taken off, allowing the X-BAT to perform free flights. The aircraft will take off from the launch and recovery trailer, go up, come around, and reattach to it, all in vertical mode. If things go well, company officials say, this milestone will be targeted before the end of 2026.

In the process, Shield AI and General Electric are realistic about the possibility of mishaps in what is really groundbreaking technology. Company officials describe a “hardware-rich approach to test,” which means building several prototype test aircraft that will be pushed to the limit. They “fully expect to lose one in testing,” since the program is stressing the delivery of capability to the operators as quickly as possible. In this respect, zero failures mean the program is going too slow, the officials say.

Market prognosis

Shield AI and General Electric confirm that there is “tremendous interest internationally” in the X-BAT, across all regions.

Their business case rests on the X-BAT providing “fifth and sixth-gen type capabilities” at a price point much cheaper than an equivalent crewed combat jet. Part of the cost equation also relates to the VTOL flight mode, which means operators can “delete a lot of the lifecycle cost associated with having a conventional air force.” With no conventional airbase required, there is no need for expensive airbase defenses or hardened aircraft shelters. The concept of operations involves a much-reduced need for tanker support, since the X-BAT can be forward stationed and has a large combat radius. Of course, there is also no conventional pilot-training pipeline. Shield AI and General Electric officials describe the resulting air power employment, in life-cycle terms, as costing around a tenth that of an equivalent fifth or sixth-gen type.

Compared to those fifth/sixth-gen platforms, the lower cost of the X-BAT means that it doesn’t have to be as survivable. Shield AI and General Electric talk about the aim of having an aircraft that is “just survivable enough that you can do the mission.” Meanwhile, it should avoid the “exponential costs for incremental return” that are inevitable in other, more exquisite platforms. Instead, the companies are looking at the possibility of an operator buying 10 to 20 X-BATs for the price of something like a B-21. The Air Force previously specified an average unit cost of roughly $550 million for the B-21.

With this in mind, Shield AI is sizing a factory that will be able to produce 150 X-BATs annually, with employees working single shifts.

Clearly, the ambition of creating a vertical takeoff and landing ‘autonomous fighter’ that is capable of countering an adversary’s air defenses at a fraction of the price of a crewed platform is incredibly bold. Some would even call it outright far-fetched. Yet the comparisons to Space-X and how they disrupted the space access market by doing something many thought would not work — also a VTOL solution — also can’t be denied.

With testing of the X-BAT and its F110-based propulsion system now well underway, and first flights planned before the end of the year, we are getting closer to seeing whether this radical vision can actually be realized.

Contact the author: thomas@thewarzone.com

The U.S. Marine Corps says it is making good progress toward fielding Collaborative Combat Aircraft (CCA) type drones, starting with a landing gear-equipped version of Kratos’ XQ-58 Valkyrie. The service sees those aircraft, and potentially other CCAs, paired with its F-35s as a “bridge” to an entire family of next-generation air combat capabilities, which could include a sixth-generation crewed fighter.

Marine officials discussed the service’s CCA plans and broader future aviation vision during a panel discussion at the Navy League’s Sea Air Space 2026 exhibition, at which TWZ is in attendance. The Corps’ CCA efforts currently fall under a program called Marine Air-Ground Task Force (MAGTAF) Uncrewed Expeditionary Tactical Aircraft (MUX TACAIR). The MAGTAF is the primary organizing concept around which the service deploys air and ground forces.

“So, with the MUX TACAIR effort, I think we’re meeting our testing goals. I would say that it’s on track,” Marine Col. Dan Weber, the Unmanned Aerial Systems Branch Head in the office of the Deputy Commandant for Aviation, said. “From a funding and demand power perspective, I think we’ve got great support. We’ve got good partners. We’ve got good relationships right now to keep that program on track, and I expect that we’re going to meet all of our milestones and goals.”

“From the F-35 side, the vision ultimately is we want the F-35 to be a quarterback with CCAs as attritable mass, as enablers to ensure the MAGTAF can project power, the sensing, the lethality, [and] all of the intangibles that kind of go along with that,” Marine Col. Thomas Bolen, the Tactical Aviation (TACAIR) Branch Head, another one of the panelists, also said. “How we integrate with CCAs is going to be extremely important, and that will bridge us down the road to kind of the sixth-generation family of systems.”

One of the “main things in our portfolio that will be enduring and developing over the next couple years” is “man-unmanned teaming,” Marine Col. Richard Rusnok, head of the Cunningham Group, who was also on the panel, added. “We’re laying the foundation for that with our first foray into Collaborative Combat Aircraft, the MQ-58.”

The Cunningham Group, which also falls under the office of the Deputy Commandant for Aviation, is charged with plotting out the overarching future vision for Marine Corps aviation.

MQ-58 refers to Marine-specific variants of Kratos’ Valkyrie now in development. Last year, the Corps announced that it was transitioning what had originally been experimental work with a small fleet of XQ-58s into a full program of record to acquire an operational platform. Kratos has since partnered with Northrop Grumman to deliver these uncrewed aircraft.

Marine Valkyries will have built-in landing gear, unlike the original version of the drone, but will still be capable of making rocket-assisted takeoffs from static launchers. This means the uncrewed aircraft will retain a valuable degree of runway independence, but that there will also be tradeoffs, as TWZ has previously explored here.

In January, Kratos told TWZ it was hoping to see the first flight of a landing gearing-equipped Valkyrie in early 2026, but there has been no official announcement yet of that milestone being reached. The Marine Corps’ unclassified 2026 Aviation Plan presents the MQ-58 as a capability arriving in the 2026 to 2030 timeframe.

The Marines have also said previously that they expect the MQ-58 to be just the first in a planned series of CCA “increments,” which might entail the future acquisition of completely different types of drones. The service has said in the past that MUX TACAIR, broadly speaking, “will enhance Marine Corps Aviation’s lethality and ability to support the Stand-in Force (SiF) by delivering air-to-ground, reconnaissance, and Electronic Warfare (EW) capabilities.”

The Corps has also already chosen to use General Atomics’ YFQ-42A Dark Merlin at least as a surrogate to test new autonomy technologies and other mission systems under the umbrella of the MUX TACAIR program. The YFQ-42A is also one of two drones under development as part of Increment 1 of the U.S. Air Force’s CCA program. Dark Merlins have been flying since August 2025, but General Atomics announced an indefinite pause in flight activities earlier this month after one of the drones suffered an accident on takeoff.

Speaking on the panel today, Col. Thomas Bolen did not elaborate on what the Marine Corps’ “sixth-generation family of systems” might consist of. However, Marine Lt. Gen. William Swan, the Deputy Commandant for Aviation, said his service was beginning to explore what it might want in a future sixth-generation crewed combat jet during a press roundtable last week, as first reported by Breaking Defense.

“Last year’s Av[iation] Plan didn’t have six-gen on there, and I made the team put it on, because we need to think about that,” Swan said at that time. “We’re not there yet. We’re fast following with the Air Force, right? They got the F-47. The Navy’s looking at F/A-XX, and they’re just starting on that. So we are going to watch.”

“We want to be an all Block 4 F-35 fleet, and that’s probably going to take another 10 years. So we’re probably five to 10 years away from ultimately making that decision. And we’ll see what they have, see what the threat looks like,” Swan continued. “I think right now, if you had to say, ‘hey, what is it going to look like?’, I think it’ll look a lot more like what the Navy’s doing, because we still fly off the carriers, we’re part of the Department of the Navy.”

“I don’t know that we’re going to get high-end, and that’s really not a Marine Corps mission; it’s the Air Force,” he added. “So I think if I had to – if you said, make a decision right now, it would be yes, some amount to augment the fifth-gen [F-35] force, and it would probably look something like the F/A-XX, or whatever the Navy ends up being [sic; acquiring].”

Lt. Gen. Swan, who served as the moderator for today’s panel at Sea Air Space, as well as Col. Bolen, again stressed the importance of the Block 4 upgrades for the F-35, including for future teaming with CCAs. The Block 4 effort has been mired in delays and cost growth, even after a revision in the fielding strategy last year to focus first on a truncated portion of the planned capability improvements. The full package for all three Joint Strike Fighter variants is eventually expected to include a new AN/APQ-85 radar and electronic warfare suite, replacements for the AN/AAQ-37 Distributed Aperture System (DAS) and Electro-Optical Targeting System (EOTS), and a host of other improvements. A particular point of concern now is that new production F-35s might soon start being delivered without any radars at all, as a result of issues tied to the development of the APG-85.

As the Marine’s top aviation officer noted last week, it could be 10 years before his service at least sees all of its F-35s fully upgraded to the Block 4 standard. That, in turn, could have serious impacts on the service’s broader plans to acquire and field new crewed and uncrewed aircraft.

Marine Corps interest in whatever the Navy chooses for F/A-XX could be an important factor for the future of that program, as well. In response to a question from TWZ at a roundtable on the sidelines of Sea Air Space this morning, Chief of Naval Operations Adm. Daryl Caudle said he is now hoping to see the selection of the winning design in the F/A-XX competition by August. The program has been in bureaucratic purgatory since the Pentagon moved to effectively shelve it indefinitely last year, with Congress subsequently intervening to keep it funded. How the Navy’s next-generation carrier-based fighter plans will proceed now still very much remains to be seen.

If nothing else, the vision the Marines have put forward today clearly frames Block 4 F-35s ‘quarterbacking’ fleets of CCAs as a key stepping stone to the service’s next-generation aviation capabilities.

Contact the author: joe@twz.com

The U.S. Air Force has concluded what it describes as a “critical exercise” with Anduril’s YFQ-44 Fury ‘fighter drone’ prototype, flown out of the base that is the heart of flight testing, the legendary Edwards Air Force Base, California. The drills involved the Air Force’s Experimental Operations Unit and were intended to demonstrate how CCAs can be deployed and sustained in a contested environment. For the exercise, the YFQ-44A flew from Edwards back to Anduril’s Southern California test site.

As well as the Experimental Operations Unit (EOU), which falls under Air Combat Command (ACC), the exercise involved personnel from Air Force Materiel Command’s (AFMC) 412th Test Wing. This wing is headquartered at Edwards Air Force Base, and the squadrons attached to it are responsible for flight testing of virtually all the aircraft in the Air Force’s inventory.

Multiple sorties were flown — we have asked Air Combat Command for more details on exactly how many and their scope. The exercise took place last week, according to Anduril’s vice president of autonomous airpower, Mark Shushnar.

The YFQ-44 is one of two designs now being developed as part of the first phase, or Increment 1, of the Air Force’s CCA program. The other is General Atomics’ YFQ-42A Dark Merlin. We have reached out to Edwards to see whether the YFQ-42 was originally expected to take part in the exercise before its recent takeoff accident.

Imagery published by the Air Force shows a YFQ-44A carrying inert AIM-120 Advanced Medium Range Air-to-Air Missiles (AMRAAM) on pylons under the wings, something that we first saw earlier this year, during captive-carry evaluations, as you can read about here. It should be noted that the Fury, at least as it exists now, does not have an internal munitions bay.

The primary function of the exercise was to explore the practicalities of what the Air Force calls the Warfighting Acquisition System. This framework is intended to speed the delivery of CCAs to operational units by enabling operators to get their hands on the drones earlier in the program. In this way, they can refine tactics and procedures before deliveries to the front line.

ACC has stressed in the past how it wants CCAs to operate seamlessly within the existing command structures and legal frameworks that govern all Air Force weapons systems.

“This experimental operations event was executed by EOU members from start to finish. Every sortie generated and flown was done with a warfighter, not an engineer or test pilot, kicking the tires and controlling the prototypes,” explained Lt. Col. Matthew Jensen, EOU commander. “We are learning by doing, at a speed and risk tolerance accepted by the USAF’s most senior leaders, to ensure CCA is ready to operate and win in the most demanding combat environments.”

Above all, the sorties stressed operational and logistical procedures for using CCAs in a contested environment. The issue of logistics is a critical one, including how CCAs will get to the area of operations and how they will be maintained in the field.

According to Shushnar, Anduril’s Menace-T command, control, communications, and compute (C4) solution was used as the main ground element for YFQ-44A flight operations during the exercise. “EOU operators used Menace-T’s ruggedized laptop to upload mission plans, initiate autonomous taxi and takeoff, task the aircraft while in flight, and manage post-flight data ingestion and checks,” he explained. “That enabled the EOU to conduct operations out of a simulated forward operating base, successfully launching, recovering, and turning YFQ-44A without the infrastructure of a large, established base.”

This is entirely in line with the Air Force’s drive toward short-notice and otherwise irregular deployments, often to remote, austere, or otherwise non-traditional locales. Agile Combat Employment (ACE) is the term the service currently uses to describe a set of concepts for distributed and disaggregated operations.

While the warfighters of the EOU were at Edwards to carry out the practical aspects of CCA employment, exploring tactics, techniques, and procedures, the 412th Test Wing, meanwhile, was on hand to gather data from the test events.

“By uniting the distinct test authorities of AFMC and the operational authorities of ACC, officials were able to fast-track the event, enabling groundbreaking, hands-on experimentation by operators at a uniquely early stage of development,” the Air Force explained in a media release.

“The collaboration we saw in this exercise is the cornerstone of our acquisition transformation. By embedding the operators from the EOU with our acquisition professionals, we create a tight feedback loop that lets us trade operational risk with acquisition risk in real-time,” said Col. Timothy Helfrich, portfolio acquisition executive for fighters and advanced aircraft. “This isn’t just a test; it’s a demonstration of how we are adopting a more agile process. An 85 percent solution in the hands of a warfighter today is infinitely better than a 100 percent solution that never arrives.”

The CCA program is viewed as a pathfinder for the Warfighting Acquisition System, and success with this could lead to the same approach being employed to get other systems into operational service much more quickly than in the past.

The Air Force has not yet determined whether it will procure one or both Increment 1 CCA designs at scale. Whichever option it selects is expected to become its first operational “fighter drones,” built to carry live munitions into combat alongside crewed aircraft.

CCAs will also extend the sensor coverage of the crewed fighters they accompany. More broadly, the Air Force views them as a way to add vital combat mass and unlock new tactical options, particularly in high-end conflicts against adversaries like China. Back in late 2024, Brig. Gen. Douglas “Beaker” Wickert, commander of the 412th Test Wing, told TWZ that, “[the-then Secretary of the Air Force Frank Kendall] “has been very clear that we are out of time, that our Air Force has never been older or smaller than it is right now, and that the People’s Liberation Army has been specifically designed to defeat us.”

“The investments we’re making right now in modernization and testing for the USAF are designed for success and aimed at changing Chairman Xi’s calculus about pushing back aggressively against the international rules-based order. What we are doing here and across USAF flight-testing is extremely consequential.”

Since then, Wickert has moved on to become Director of Air, Space and Cyberspace Operations at AFMC, but the test wing’s remit remains the same. Meanwhile, the People’s Liberation Army Air Force has doubled down on its rapid expansion, including many of its own CCA programs.

If all goes to plan, the completion of this recent exercise at Edwards could well be a key milestone in fielding a combat-ready force of CCAs and go some way toward realizing the Air Force’s ambition for a new capability that should extend the reach and the survivability of its crewed aircraft.

Contact the author: thomas@thewarzone.com