testing

The testing plan for the U.S. Air Force’s sixth-generation F-47 fighter is continuing to take shape ahead of the type’s expected first flight in 2028. The Air Force Test Center (AFTC) aims to blend developmental and operational test elements, and leverage new tools in the virtual realm, to help accelerate that work. All of this is in support of an aggressive program schedule that aims to see the first production F-47s enter operational service in the early 2030s.

Air Force Brig. Gen. Mark Massaro, head of the AFTC, was asked about how the groundwork is being laid for F-47 testing during a virtual talk the Air & Space Forces Association’s Mitchell Institute for Aerospace Studies hosted yesterday. AFTC is located at Edwards Air Force Base in California, which is the Air Force’s main flight testing hub.

“So, I’ll leave timelines to the [F-47] program office and other folks to talk to, but what I will tell you are some of the things that we’re doing to accelerate our test capabilities to get critical capabilities out the door,” Massaro explained. “Integrated test is a key component.”

“So, how we mix together the DT [developmental test] and OT [operational test] elements, how we bring our operational test partners in earlier to define the requirements early on in the test planning process,” he continued. “We understand that the information that we can get early on in a program may have applicability to that final operational test requirement to establish whether it’s effective and suitable to the end user. So that’s a key component to accelerating test capabilities.”

There has always been overlap in development and operational test efforts for new U.S. military aircraft, but the Air Force has been taking steps to more deeply integrate these processes in recent years. The F-15EX Eagle II fighter, which reached initial operational capability in 2024, was the first ever Air Force aircraft to be fully tested and fielded through DT and OT efforts conducted in parallel, as you can read more about here. The service has more recently applied these concepts to the B-21 Raider program with test flights where developmental and operational test pilots have shared the cockpit.

“Another thing that we’ve learned over time too, if you think back to software testing and you think about agile software development, is having an iterative capability that you constantly iterate on,” Brig. Gen. Massaro also highlighted yesterday. “So, thinking about how we can structure our software, or our software testing, our capabilities testing.”

In this way, “we have those opportunities to inform decision makers on a regular cadence on what type of capability they may have at a certain timeline to be able to issue out to a warfighter on a time that might not be a normal milestone chart,” he continued. “We’re really working to incorporate into our test planning processes.”

“Another thing – and I kind of alluded to it a little bit earlier, too – is on the digital front, using our software tools, that super intelligence, graphic processing units, which have a significantly higher capability to process information, to really refine model iteration,” the AFTC head added. “Those models and flight test data [can be used] to update things like computational fluid dynamics when you’re doing tests like loads and high-alpha maneuvering to get information quicker from a flight test back into the program.”

Those “digital tools” can also be used “to accelerate how that information then goes back into a design choice or change if they need to make it,” he continued. “Coming up with those opportunities to use those tools in a test design and in a program” can then further help “to accelerate that final schedule delivery.”

Even very high-fidelity modeling in the digital realm is still not a substitute for real-world flight tests. However, Brig. Gen. Mark Massaro spoke more generally yesterday about how AFTC has been blending digital and live testing to maximize their respective benefits.

“We use models to develop our capabilities, and we need to anchor those models in truth, in physics, and an understanding of what happens in the real world,” the AFTC head stressed. “Outside of a cyber system, all of our capabilities touch the real world and touch physics, and we need to understand those dynamics. So, the models that we use to do design work, to do iterative type[s] of developmental work, and, in ways, operational work, too, need to be anchored in that real world truth.”

At the same time, “we can’t replicate what we need to go and test, and develop tactics and operationally test, in the real world on some of our ranges,” he also noted. “So, from a geographic perspective, just the width and the depth and the height of the ranges to the laydown of the systems that we have to see on the ranges to be able to execute against a threat, [and] the numbers that we might have to be testing.”

Blending real and virtualized elements can therefore be very valuable.

An “element that we’ve done in the developmental world for quite a while, that are [sic] part of this conversation, are plugging in, even though it’s a virtual environment, plugging in real world hardware into that virtual environment,” Massaro offered as one example. “So, you’re getting real-world software, the OFPs [operational flight program software], or you’re getting real-world sensing information coming into that virtual environment and feeding it there.”

Air Force Test Center’s Mission

Virtualized elements can also be added to real-world flight test events in various ways. The Air Force, among others, is also making use of these so-called live, virtual, constructive (LVC) concepts for training purposes for many of the same general reasons, including limited range capacity.

It is also worth noting here that the F-47 program is already benefiting from years of flight testing in secret using full-scale demonstrator aircraft. A substantial amount of simulation and modeling would also already have been done as a byproduct. A simulator likely already exists, as well, which could be used for risk reduction and fine-tuning of the F-47 design, as well as testing flight dynamics.

The Air Force has also leveraged its F-22 Raptor fleet to help in the development of relevant advanced capabilities. Back in 2023, the service announced that it was outright transforming its existing F-22 test force into one that would support the broader Next Generation Air Dominance (NGAD) initiative. F-47 is part of the larger NGAD effort, as is the Collaborative Combat Aircraft (CCA) drone program, along with work on new weapons, jet engines, and more.

Though much about the F-47 program remains highly classified, the Air Force has consistently said that the program continues to be on track. Prime contractor Boeing is now building the first flying example, and construction is already well underway to establish a full production line. As mentioned, the target date for a first flight is currently in 2028, ahead of operational fielding in the early 2030s. As an aside, Boeing has also now won the contract to develop the Navy’s sixth-generation carrier-based fighter, currently referred to as F/A-XX.

AFTC is doing its part now to be ready to support the flight testing that will be needed to keep the F-47 program on track in the coming years.

Contact the author: joe@twz.com

China’s Chengdu Aircraft Corporation continues to press ahead with the development of its ‘J-36’ next-generation tailless heavy tactical jet. Recent flight testing has offered interesting new views of the still-evolving stealthy design from the top and behind, prompting discussion about the aircraft’s features. There has also been talk recently about whether the jet might receive a laser directed-energy weapon at some point in the future.

The J-36 first broke cover, along with another next-generation tailless tactical jet design generally referred to as the J-XDS, back in December of 2024. There are understood to be at least four, and possibly five, J-36 prototypes flying now. A number of significant changes between prototypes have already been observed over the past two years, as you can read more about here.

The most recent video of a J-36 test flight, seen in the social media post below, began circulating online yesterday. The footage shows the aircraft coming in to land, providing good general views of the uniquely three-engined jet with its two-seat, side-by-side cockpit configuration, especially from the rear aspect. What is seen underscores a previously observed total revision of the exhausts from a trough style to a two-dimensional thrust-vectoring configuration akin to what is found on the U.S. F-22 Raptor. This and other significant changes to the design, including the addition of divertless supersonic intakes (DSIs) all around, not just on top, first emerged last year. The clip also offers a good reminder of just how wide the aircraft is overall.

As this particular J-36 passes by, it can be seen to have a lighter-colored radome, as well as at least one relatively large lighter-colored section on top of the dorsal air intake. A similarly colored radome was first spotted on what is said to be the fourth prototype back in July. This coloring could point to the installation of actual radar in the aircraft’s nose. In TWZ‘s first in-depth analysis of the J-36 back in 2024, we assessed that the jet’s very broad radome area could house an absolutely massive primary array.

The lighter section on top of the fuselage could be an aperture for a conformal antenna tied to a beyond-line-of-sight communications and data-sharing suite. In 2024, we posited that the heavyweight J-36 could serve as an intelligence-gathering and communications relay platform in addition to performing tasks more typically associated with tactical combat jets. Reliable and multi-faceted connectivity would be key for employing the J-36 as an airborne controller for advanced air combat drones, as well.

Another J-36 flight testing video that emerged on Monday, seen below, offers an additional view of the top of the jet, showing multiple lighter-colored sections that would appear to be additional conformal apertures for various antennas. There is a lighter-colored rectangular outline painted around part of the intake on top of the center of the fuselage, as well. The jet’s full paint scheme includes lighter-colored leading and trailing edges, which are critical structures on low-observable (stealthy) designs that often contain additional antenna arrays. Overall, the two-tone coloring is very much in line with what is seen on operational J-20 fighters in Chinese service today. The original J-36 prototype, at least, has notably worn a splinter-type camouflage paint scheme.

Whether or not the two recent video clips show the same J-36 prototype is unclear. The possibility has now been raised that Chengdu may be using a single serial number (36011) on at least some of the J-36 prototypes, a decision that could have been made for counter-intelligence and/or deliberate misinformation/disinformation purposes.

Much still remains unknown about the current or expected future capabilities of the J-36. Aviation Industry Corporation of China (AVIC) did have a placard at its booth at the 14th China International Defence Electronics Exhibition earlier this month that has prompted questions about whether the jet could be equipped with a laser directed-energy weapon. Chengdu falls under the umbrella of AVIC, which is a state-run enterprise. The Chinese-language placard in question describes a “laser weapon tracking system” with a power rating of “*00” kilowatts and a weight of “less than” 837.7 pounds (380 kilograms), per a machine translation. The way the power rating is written appears to mean that it is in the hundreds of kilowatts, which would put it firmly in a class capable of doing physical damage to objects, such as incoming missiles and drones.

Furthermore, an associated graphic shows a turreted system and a computer-generated rendering of a J-36 projecting a beam. The render appears to be from a video that depicts a J-36 using a laser to destroy other aircraft. Another computer-generated video that shows a J-36 using retractable lasers to shoot down incoming missiles has been circulating online since at least last year.

It is not immediately clear how official either of the clips depicting laser-armed J-36s might be, or whether they at all reflect real planned capabilities. The full placard presented at the China International Defence Electronics Exhibition, as seen in the video below, shows a variety of different laser systems, and not just for aerial applications.

The fielding of operational laser directed-energy weapons capable of inflicting any real physical damage has historically proven to be very challenging, and even more so within the size, power-generation, and cooling constraints presented by modern combat jets. As an example, the U.S. Air Force spent roughly a decade working on a podded laser weapon system that tactical jets could use to swat down incoming missiles under its Self-protect High Energy Laser Demonstrator (SHiELD) program. In 2024, the service confirmed SHiELD had “concluded” without achieving its goal of an actual flight test. That same year, the Air Force cancelled plans to test a laser weapon system on an AC-130 gunship.

Despite important U.S. strides more recently when it comes to fielding ground-based and naval laser weapon systems, “there’s nothing that’s on the shelf right now that we are ready to put onto an airplane,” U.S. Air Force Brig. Gen. Douglas Wickert, the commander of the Air Force Research Laboratory (AFRL), told TWZ and other outlets just last week at a roundtable at the Air & Space Forces Association’s (AFA) 2026 Air, Space & Cyber Conference on Tuesday. “The solid-state lasers and the power density and the different ways that you actually – there’s actually a lot of secret sauce in that. How do you make the beam, and how do you form the beam, and how do you pulse the beam, and all that’s in development.”

‘There’s development of the laser itself, but now the power and thermal management system has progressed so much that we can provide the power needed,” Dr. Michael Gregg, head of AFRL’s Air Warfare Directorate, said at the same roundtable. “We’ve also had new designs and engines that we know have the power … to direct that power in certain areas. So, from a system perspective, it’s much more feasible because everything has matured over the last decade.”

China has certainly made substantial investments of its own in laser and other directed-energy weapon capabilities across domains in recent years, and this is clearly an area of interest for the People’s Liberation Army (PLA), in general. When it comes to the J-36 specifically, TWZ has explicitly highlighted in the past how the three-engine configuration could be particularly useful for producing sufficient power to support a host of advanced and electricity-hungry sensors and other capabilities, including directed energy weapons.

Larger questions remain about the exact set of roles the J-36 is expected to fill, as well. The basic design is certainly optimized for straight-line performance, combat radius, and payload rather than maneuverability and agility. The jet has already caused a significant amount of debate just when it comes to taxonomy, as it does not seem to fit inside traditional definitions of ‘fighters’ and ‘bombers,’ something we have explored in detail previously.

“According to Yang Wei – chief designer of the J-20 –, the new [J-36] fighter can penetrate heavily defended airspace that the J-20 and comparable F-22s or F-35s must avoid, placing it a generation ahead,” Andreas Rupprecht, an analyst specializing in Chinese military aviation and TWZ contributor, wrote in a post on LinkedIn last week. “With lower RCS [radar cross section], high speed, and the capacity to control more drones, it could act as a node and command center for systems including J-20s and, especially, unmanned aircraft, while attacking high-value targets from stand-off range with long-range weapons.”

“The type could therefore represent a new class of ‘fighter,’” he added. “Online terms include ‘theater-level deep-penetration command combat aircraft’ and ‘high-performance fighter,’ analogous to a cruiser ranking above a destroyer within the Navy. Recent evidence gives this theory new weight and warrants continued monitoring.”

The J-36, as well as the J-XDS, reflect a larger burst of next-generation air combat developments in China in recent years. This includes an array of new crewed and uncrewed aircraft designed for operations from bases on land, as well as from the PLA Navy’s (PLAN) growing fleet of aircraft carriers and big-deck amphibious assault ships. The Chinese aviation industry’s development of a growing array of flying-wing uncrewed aircraft, some of which are very large, has been particularly notable.

In turn, there is something of an emerging gap between these developments and the pace at which the U.S. military is moving along similar lines, at least publicly. Boeing’s sixth-generation F-47 for the U.S. Air Force is not expected to take to the skies for the first time until 2028, though preceding demonstrator designs have been flying for years already. The U.S. Navy still has yet to officially announce a winner of its F/A-XX next-generation carrier-based fighter competition, and the current timeline for that program producing an operational aircraft is unclear.

As an aside, based on what has emerged publicly to date, there are signs that the F-47 may reflect a distinctly different design philosophy that puts greater emphasis on maneuverability compared to the J-36, and even likely the J-XDS. As mentioned, the J-36 certainly seems much more focused on payload, range, and level flight performance. In July, TWZ published a deep dive exploring why the U.S. Air Force would pursue a sixth-generation fighter with rear-swept wings, canards, and other features despite steady trends in the opposite direction visible in Chinese designs and ones elsewhere globally.

Regardless, U.S. officials have downplayed questions about China’s gaining ground in the air combat arena, or even surging into the lead in certain areas, in the past. “Chinese sixth-generation aircraft are in the nascent stages of development and expected to be operational by 2035,” the Pentagon wrote in its most recent annual report on military and security developments in China, which was published in December 2025.

In the meantime, the J-36’s design is already steadily being refined, and the total fleet of prototypes has been growing, offering new insights into the aircraft’s expected capabilities and roles.

Contact the author: joe@twz.com

The Pentagon has reached an agreement with Lockheed Martin to lay the groundwork for stepped-up production and delivery of new AIM-260 Joint Advanced Tactical Missiles (JATM) to the U.S. military and allied air arms in the coming years. The AIM-260 is still in development, but the head of the Air Force Test Center also touted efforts to further accelerate that work just earlier this week. From the start, the U.S. military has presented JATM as especially critical for ensuring China, with its own growing array of longer-range air-to-air missiles, does not gain an edge in future air combat.

The new framework agreement announced today “is critical to ensuring long-term demand signals flow to key suppliers, allowing Lockheed Martin and the munitions supply chain to invest in manufacturing capacity, workforce, and production efficiencies,” according to a Pentagon press release. “It establishes a framework for future Multi-Year Procurement (MYP) of JATM, executing congressional authority to secure the nation’s highest-priority missile systems.”

“This agreement forms the foundational agreement for a multiyear procurement contract, pending Congressional approval, that provides long-term demand to strengthen and expand the defense industrial base for the program,” according to a separate release from Lockheed Martin.

In response to questions from TWZ, the Pentagon declined to comment on the projected number of JATMs covered under this agreement, as well as estimated costs and delivery schedules.

U.S. Navy F/A-18E/F Super Hornets and U.S. Air Force F-22 Raptors are expected to be the first types to fly operationally armed with AIM-260s. Integration on other platforms, such as variants of the F-35 Joint Strike Fighter and the Air Force’s forthcoming F-47 sixth-generation fighter, is expected to follow. JATM, which is designed to have the same general form factor as the existing AIM-120 Advanced Medium Range Air-to-Air Missile (AMRAAM), has been discussed as part of the arsenal for the Air Force’s future Collaborative Combat Aircraft (CCA) drones, as well.

The releases today from the Pentagon and Lockheed Martin confirm that the new framework deal also includes planned foreign military sales of AIM-260s. Australia, one of America’s top allies, is the first confirmed international customer for the JATM, and plans to integrate the missiles on its F/A-18Fs, F-35As, and EA-18G Growler electronic warfare jets. The Royal Australian Air Force’s MQ-28 Ghost Bat CCA-type drones, initial versions of which are already capable of firing AIM-120s, might be another AIM-260 launch platform in the future.

Uncrewed MQ-28 Ghost Bat showcases its combat capability

The AIM-260 remains in development, with the Navy and Air Force test communities supporting that work.

“We are accelerating weapons development from high-end air dominance weapons like the JATM to hypersonic strike systems like the Hypersonic Attack Cruise Missile,” Air Force Brig. Gen. Mark Massaro, head of the Air Force Test Center (AFTC) at Edwards Air Force Base in California, told TWZ and other outlets at a media roundtable yesterday. The roundtable took place at the Air & Space Forces Association’s (AFA) 2026 Air, Space & Cyber Conference.

“We’re actively testing JATM, and it’s progressing along its program path. In test, we are working through the development stages there,” Massaro added. “So, we’re testing it in [sic] the ground with models, like I mentioned. We’re testing it in the air on aircraft. So, from a performance standpoint, I’ll hold on to that from an operational security perspective. But we’re happy seeing where it’s going, and we expect that to be a key piece of capability for our warfighters to have.”

“Just from a testing perspective, we’re always looking at making sure that we’ve got the throughput,” he added when asked if he could talk about challenges or other issues AFTC has run up against in work on the AIM-260. “So, from a test perspective only, infrastructure and throughput to make sure that we can get things out … and make the testing happen. But I’m not, from a capabilities perspective, worried about the system.”

It is unclear when the first operational AIM-260s may begin entering the U.S. inventory. When the program was first disclosed to the public in 2019, the stated goal was to start fielding the missiles in 2022. There were also reports in late 2025 that funding issues had caused a three-month delay, based on a fact sheet distributed to some members of the U.S. House Committee on Armed Services. The committee later said that the information was incorrect.

Work to date on JATM has been conducted under a heavy veil of secrecy, with the existence of the program only being announced in 2019. The first public glimpse of the missile only emerged in May of this year. Beyond the aforementioned size requirement and that the new missile will offer significantly greater engagement range over the AIM-120, details remain limited. Readers can learn more about what we do know so far here.

What is clear is that the growing reach of Chinese air-to-air missiles has been a key driver behind the JATM program, with Air Force officials having explicitly mentioned the PL-15 in the past. China continues to pursue even longer-ranged and otherwise more advanced air-to-air missiles, as you can learn more about in this past TWZ feature. The Air Force has previously raised the prospect of a general threat ecosystem that includes anti-missiles with ranges of up to 1,000 miles emerging by 2050.

The AIM-260 is not the only longer-ranged air-to-air missile known to be in development in the United States, either. In 2024, the Navy revealed it had begun fielding an air-launched version of the surface-launched Standard Missile-6 (SM-6), called the AIM-174B Gunslinger, at least on a limited level. Just in August of this year, the service disclosed the existence of another very long-range air-to-air missile, the AIM-424 Malice, which has already reached the flight testing phase of development.

An Air Force spokesperson told Air & Space Forces Magazine last month that the service was “closely following” the Navy’s work on the AIM-424. In June, the Air Force itself shared details about another potential future air-to-air missile, dubbed the Air Force Long Range Weapon (AFLRW), including a target requirement for a maximum range of at least 1,000 nautical miles.

Based on past experiences with public disclosures about the AIM-260, AIM-174B, and AIM-424 programs, additional work on advanced longer-range air-to-air missiles is certainly ongoing in the classified realm.

Today’s announcement about the new framework agreement, together with Brig. Gen. Massaro’s brief update yesterday, makes clear there is a continued commitment to JATM amid a still-growing field of new, longer-range air-to-air missiles.

Contact the author: joe@twz.com