J-36 - China's “Gingko Leaf” Stealth Project

[Signal Witch]

J-36 "Ginko Leaf", China's Latest Stealth Aircraft

The designation “J‑36” itself is unconfirmed by Chinese authorities; Western analysts have assigned it based on the prototype’s serial number “36011, which is following precedents like the early J‑20 marked “2001”. It is widely referred to as the “Gingko Leaf” by US analysts based on its elongated diamond-delta planform that resembles the fan-shaped leaf of a ginkgo tree 

The J-36 is China's latest high-profile stealth project, emerging from satellite imagery, low-resolution flight footage, and leaks from state-linked media. It's shaped like a flying wedge, often compared to the B-2 or upcoming NGAD concepts, and intended to serve as a next-generation answer to Western air dominance platforms. What makes it stand out immediately is its three-engine configuration, something almost unheard of in modern stealth fighters.

Claimed Performance

Top Speed: Mach 2.5
Combat Radius: 2,000 kilometers or more
Payload: Large internal bays for long-range air-to-air missiles and precision strike weapons
Primary Roles: Long-range air superiority, deep strike, maritime interdiction, and possible control of drone swarms or unmanned wingmen

Is the Performance Plausible?

Parts of it are. The broad, tailless airframe supports the claim of extended range and large internal volume. The shape, similar to a cranked-kite or ginkgo leaf, offers better lift and fuel capacity than a traditional fuselage. However, the idea that this platform can reach and sustain Mach 2.5 raises serious doubts. High-speed stealth flight requires highly efficient, powerful engines and advanced heat-resistant materials. If China has not yet produced a single engine that meets those standards, the idea that three of them combined can do it cleanly is unlikely. The thermal bloom from three exhausts also raises serious infrared visibility concerns.


Chinese Engine Limitations & WS-15/WS-19 Status

China’s most advanced engines, the WS-15 (for the J‑20) and WS-19 (for the J‑35), are reported to struggle with reliability, thrust output, and low service life compared to Western engines. Chinese analysts have noted the country still lags behind in aero engine innovation and manufacturing quality

Specifically, WS-15 efforts spanned decades and only recently entered serial production amid reports of ongoing instability and turbine blade failures

The WS-19 is still under development, aiming for around 22,000 pounds of thrust, while the WS-15 is intended to produce approximately 35,000 pounds of thrust, but neither reached the maturity of US engines by the time the J‑36 design reportedly emerged


Reason for a Three-Engine Configuration

Analysts studying the J‑36 platform have noted that using three lower-powered engines makes sense if no single domestic engine can meet the thrust requirements for a large, heavy stealth aircraft. This is consistent with observations from aerospace forums and technical speculation platforms

In particular, public commentary on the J‑36 emphasizes it being significantly larger and requiring more total thrust than a twin-engine J-20 configuration can provide using existing engines



Stealthy Analysis:

Radar Signature Problems: The aircraft appears to use vertical control surfaces at the rear of the wings. Even small protrusions at those angles reflect radar energy back to the emitter, particularly at side and rear aspects. This undermines the entire stealth profile.



Exposed Canopy Weakness: Based on images, the canopy does not show the signature gold or iridium tint associated with radar-absorbent coatings. Without proper treatment, radar waves can enter the cockpit, reflect off metal and the pilot's helmet, and leak out again. That creates a visible hotspot at the worst location.

Intake and Engine Visibility: The dorsal intake is unusual and may be a liability. If the engine face is even partially visible to radar from above or below, it becomes a bright return point. The lack of clear S-ducts or radar-blocking elements suggests poor fan-face masking.



Thermal Signature: Three engines mean three exhaust plumes. This greatly increases the aircraft’s heat signature, making it vulnerable to infrared search and track systems used by modern fighters and ground stations. Unless extensive cooling measures are in place, this kills stealth from behind.

Manufacturing Quality: Chinese prototypes and early production aircraft have shown visible seams, inconsistent panel alignment, and limited use of advanced RAM materials. Surface flushness and edge treatment matter as much as shape. If the J-36 inherits these same flaws, its low observability will suffer.

Summary Of What Real Stealth Engineers Think?

True stealth requires more than a triangular shape. It demands edge alignment, multi-band radar-absorbent coatings, internal cooling, sealed access panels, fan-face shielding, LPI radar modes, and clean emissions control. The J-36 may hit a few of those marks in theory, but if it's relying on a brute-force engine setup and still carries obvious radar and IR weak points, it is not low observable in any serious way.

Final Verdict

The J-36 is visually impressive and may serve as a potent regional platform, especially in a first-strike or coordination role. But if you're comparing it to the F-22, F-35, or NGAD, it falls short. The three-engine layout is a workaround, not a breakthrough. Its planform suggests ambition, but its execution still reflects the limitations of current Chinese aerospace engineering. Without better engines, cleaner stealth features, and a fully integrated radar and EW suite, the J-36 is not the game-changer it's being sold as. It's bold. It's potentially fast. But it's not invisible.

What are your thoughts?


Sources: F-16.net, Secret Projects Forum, Interesting Engineering, Wikipedia, CSIS, Sustainability Times + private conversations with experts in the field

[Zaphod58]

I heard it said that the third engine was also because they couldn't produce enough electrical power as well as the other propulsion issues. I agree with everything you said, and while interesting, this is far from a game changer, or even the threat that the J-20 might pose to our high value assets.

[Zaphod58]

This has started making the rounds on Twitter, along with more nonsense about Chinese 6th Gen aircraft.

[Starlight]

The JXX and J36 are some pretty cool looking planes!