Key Points and Summary – New rear-aspect images of China’s mysterious, tailless J-36 stealth jet show a major design change: three two-dimensional thrust-vectoring exhaust nozzles replacing the recessed outlets seen on the first prototype.
-That shift suggests a new emphasis on maneuverability and high-altitude performance at some cost to stealth—and it also undercuts earlier assumptions that the program was close to a production-ready configuration.
China J-36 Fighter Takeoff. Image Credit: X Screenshot.
-Instead, the J-36 increasingly looks like a rapidly evolving testbed inside a Chinese aviation ecosystem that is iterating faster than the West. The real story may be less about one airframe and more about the speed of China’s design cycle.
The Chengdu J-36 May Not Tell Us Anything At All
New images have appeared online that appear to be the first-ever clear rear-view shots of China’s large, tailless stealth jet, unofficially known as the J-36.
The photos are shocking because they reveal a significant design change: a set of three two-dimensional thrust-vectoring exhaust nozzles, one for each engine.
The new photographs, reportedly taken during landing or taxiing, show the aircraft from below and behind. In them, nozzles resembling those employed on other high-end stealth fighters can be seen, suggesting there has been a departure from the first J-36 prototype’s design.
The original prototype featured recessed exhausts, which were initially interpreted as an attempt to improve the aircraft’s stealthiness.
The change is surprising for a few reasons.
J-36 Fighter YouTube Screenshot/Artist Rendering.
One, it marks a shift in the trajectory of jet development, as priorities are changing, too. The new thrust-vectoring exhaust nozzles provide better flight control and maneuverability at the expense of some stealth.
Additionally, the nozzles may help the jet operate safely and reliably at high altitudes.
Two, the new images also refute earlier assumptions that the aircraft was approaching the near-series development stage.
Now these changes have been witnessed, it’s hard to say at what stage the program currently is, how far away it is from early production, and whether this is one of multiple designs being considered.
Three, it also reaffirms something the West has been witnessing in Beijing’s aviation industry for some time now: rapid iterations.
China is rapidly changing and iterating aircraft at a pace never seen in the West, indicating an aggressive attempt to catch up with Western capabilities at a time when the United States’ industrial base is struggling to keep pace.
NGAD Artist Photo. Image Credit: Creative Commons.
The images come after images appeared in late October showing the new main landing gear and inlets.
The J-36: What We Know
Officially, we know nothing about the J-36 – but there are plenty of things known by Western analysts and military officials based on intelligence and images that have surfaced online. The J-36 is believed to be a large, tailless, three-engine stealth tactical aircraft currently under development by Chengdu Aircraft Corporation (CAC).
The aircraft first appeared publicly in late 2024, when images showed a broad flying-wing profile with no vertical tail surfaces and a platform that was more reminiscent of sixth-generation concept art than a conventional fighter jet.
Subsequent photographs have revealed that the jet is enormous for a tactical aircraft, with a wide center fuselage and lines that blend smoothly into the wings. The design makes it evident to analysts and observers that China is looking to focus on range, internal volume, and stealth – at least, until the new images revealed that stealth has been somewhat compromised.
Another defining characteristic of this remarkable craft is the presence of three engines – a feature seen in both the first and second rounds of prototype leaks.
The original airframe appeared to show recessed, trough-like exhausts, which have now been changed.
But regardless of that configuration, the tri-engine layout is highly unusual in modern fighter development and has prompted some speculation that the aircraft is intended to carry heavy payloads over long distances, or to operate at higher altitudes than current Chinese fighters.
Because images of the aircraft have all come from uncontrolled public leaks rather than official disclosures, the jet’s intended mission remains the subject of debate.
However, features such as its size, cockpit layout, internal volume, and ongoing design changes make it clear that this is a tactical jet capable of long-range strike, extended air-dominance missions, or acting as a sensor-fusion hub for unmanned systems.
In other words, it’s a next-generation jet – and it’s being developed at the same time the U.S. focuses on its own manned-unmanned teaming fighter jet under the Next Generation Air Dominance (NGAD) project.
What Are We Really Looking At?
Even if the Chengdu J-36 has all the hallmarks of a sixth-generation fighter jet – and it certainly does – its rapidly evolving design is interesting.
It could well simply reflect the fact that, as mentioned, China is more rapidly iterating on its designs – but it could also indicate that the platform is currently being used as a testbed, rather than being a finished or nearly-finished product.
The arrival of a second prototype in late 2025 featured significant differences over the first, suggesting that Beijing is still experimenting with the design. And while the changes suggest that sacrifices may have been made to stealth, it’s still unclear whether that will be the final decision. All we know at this stage is that multiple designs exist, and the arrival of this latest prototype may simply be the result of this design having been finished later than the last.
Whether this design survives into production or proves to be another stepping stone is unclear, and we likely won’t know until it’s complete. And even then, much of the J-36’s capabilities will remain speculative.
About the Author:
Jack Buckby is a British author, counter-extremism researcher, and journalist based in New York who writes frequently for National Security Journal. Reporting on the U.K., Europe, and the U.S., he analyzes and understands left-wing and right-wing radicalization and reports on Western governments’ approaches to the pressing issues of today. His books and research papers explore these themes and propose pragmatic solutions to our increasingly polarized society. His latest book is The Truth Teller: RFK Jr. and the Case for a Post-Partisan Presidency.
