Foreign media have compiled a pattern of China’s fighter aircraft updating every 13 years, predicting that China’s seventh-generation fighter will make its first flight between 2027 and 2038! This 13-year cycle has never been broken since the J-10 era:
The J-10 made its maiden flight in 1998; the fifth-generation fighter, the J-20, first flew in 2011—exactly 13 years later. The prototype of the J-36 was observed flying publicly at the end of 2024—again marking a 13-year interval. Based on this timeline, it's entirely plausible that a seventh-generation fighter will appear around 2037–2038.
In fact, this 13-year pattern originated from “export-to-domestic-use” development: shortly after China publicly unveiled its sixth-generation fighter on December 26, 2024, netizens posted about it on social media. This time, the buzz intensified because of the staggering scale of J-20 production and deployment numbers, which shocked foreign observers. Multiple professional media outlets believe China’s fifth-generation fighter fleet may already exceed 500 aircraft. Given China’s historically delayed official data releases, the actual number could be over 600.
They’re now speculating: how long will China continue this rapid production of fifth-generation fighters?
Recently, foreign media tallied China’s fifth-generation fighter inventory and discovered a disturbing reality: nearly a decade after the J-20’s first flight, Western assessments still counted fewer than 100 units. But within just five years, that number suddenly surged to 500! It’s like a game where the quantity doubles every day—initially you don’t notice because the base is small, but by the time you pay attention, the number has become utterly overwhelming.
Why are foreign observers so anxious? Because the U.S. has not kept pace with China in fifth-generation fighter growth. The F-22 is capped at 185 aircraft and continues to decline in numbers. Although F-35 production has surpassed a thousand units, this mid-sized multirole fighter is limited by its shared airframe design across all branches of service, leaving little room for major upgrades. Its cramped internal space even requires significant redesigns just to install the AN/APG-85 gallium nitride radar—effectively pushing the F-35 to its technical limits.
In contrast, China’s J-20 not only sees explosive quantity growth but also rapid model iteration. There are already two variants: the J-20A and the J-20S. The J-20A features the WS-15 engine, signaling that China has solved its engine problems—future production is no longer constrained by propulsion. The J-20S is a twin-seat version capable of controlling loyal wingman drones, making it even more formidable than the J-20A.
Meanwhile, the U.S. relies on the F/A-18 twin-seat variant as its equivalent. The single-seat F-35 suffers drastically reduced efficiency when managing loyal wingmen under high-intensity combat conditions. The recent decision to revert the B-21 bomber from a single pilot plus AI co-pilot back to dual-pilot operation is the clearest evidence yet. From radar compatibility issues to loyal wingman control challenges, the performance ceiling of U.S. fifth-generation fighters has already been reached—further improvements are impossible!
With no critical bottlenecks holding it back, China’s defense industry is producing at an astonishing rate. However, foreign analysts believe the J-20’s high-speed production phase will likely end around 2030, with a total output possibly topping 1,000 units before being replaced by sixth-generation aircraft. Another trend is already underway: China is gradually replacing the J-10C with the J-35A. In the future, except for certain heavy fighters like the J-15 and J-16, China is rapidly entering an era of fully stealthy combat aircraft.
So when will sixth-generation fighters enter service? The U.S. has no clear timeline—the F-47 is still nowhere to be seen in flight tests. A recent rumor circulated about a test video filmed at Area 51, but such footage is likely just a short promotional clip designed to reassure the public—no one knows if it’s real.
China, however, already has a timetable: first flight in 2024, typically entering service 5–6 years later—around 2030. That’s also why J-20 production is expected to slow down around 2030—to redirect resources toward sixth-generation fighters.
The design philosophies of China’s and the U.S.’s sixth-generation fighters have already diverged significantly, with each nation focusing on vastly different priorities. China is developing carrier-based and land-based high-maneuverability air superiority fighters alongside ultra-long-range, high-payload multirole strike platforms—all simultaneously. So far, the U.S. has only publicly revealed the F-47 air superiority variant. Looking ahead to seventh-generation fighters, China’s path appears clearer.
China’s pursuit of speed surpasses both Russia and the U.S. Originally, hypersonic weapons were developed early in China’s military modernization as a “game-changing” capability. But now that China’s arsenal is highly advanced, it has realized just how powerful these hypersonic systems truly are—from glide-based hypersonic missiles to air-breathing hypersonic missiles. Unlike Russia’s “Zircon,” which achieves hypersonic speeds only during terminal phases, China’s systems sustain hypersonic flight throughout their entire trajectory.
This demonstrates that China has overcome the technological barriers to air-breathing hypersonic engines. Standing at a new technological peak, China’s future seventh-generation fighter development will undoubtedly focus on hypersonic capabilities. With existing technologies like scramjet engines used in missiles, and alternative options such as counter-rotating dual-rotor ramjets available, reaching speeds of up to Mach 6 should be feasible. Thermal load management for the airframe and extensive data on hypersonic aerodynamic effects are already well-documented.
Combined with China’s accumulated expertise in hypersonic wind tunnels, the technical foundation for a hypersonic seventh-generation fighter is largely in place. What remains is engineering integration—bringing together cutting-edge advancements across multiple domains into a single operational platform. We have no doubt that China will develop a seventh-generation fighter by the late 2030s. Yet, from today’s perspective, this 13-year cycle seems less like a strict rule and more like a historical pattern. Looking forward, 13 years feels too long. As a new generation of military enthusiasts, we simply can’t wait any longer!
What do you think? Is China’s seventh-generation fighter headed toward hypersonic capabilities?
Original article: toutiao.com/article/1870926707728396/
Disclaimer: The views expressed in this article are those of the author alone.