Key Points and Summary: China’s next-generation JH-XX is a stealthy, long-range fighter-bomber that first conducted a test flight in December 2024.
-Larger and heavier than the J-20, it features a unique three-engine configuration and a modified tailless delta-wing design optimized for high-speed flight.
-With an estimated range of 1,200 miles, the JH-XX is designed to project power beyond the First Island Chain, capable of striking targets in Guam, Japan, and South Korea.
-Its large payload and potential nuclear capability make it a significant new asset for the PLAAF, potentially leading a “Day One” assault in a Taiwan conflict.
JH-XX Medium Fighter-Bomber in 4 Words: Still a Big Mystery
It’s bigger than a typical Chinese fighter jet but smaller than a bomber, and either way, it looks to be an interesting new airplane for the People’s Liberation Army Air Force (PLAAF). I’m referring to the next-generation JH-XX that brings much to the table and shows that Chinese designers, engineers, and technicians are conducting their usual yeoman work to bring a new warplane to reality.
The JH-XX made a test flight in December 2024, on Mao Zedong’s birthday. The military aviation world took notice. It is not clear if the new stealth warbird is a sixth-generation model, as it may be more like a fifth-generation warbird similar to the PLAFF’s J-20. It borrows characteristics from the J-20 Mighty Dragon and is likely produced by Chengdu.
Building Off the Characteristics of the J-20
The think tank Observer Research Foundation (ORF) offers more details. The JH-XX features a tailless design with a flying wing shape, providing it with ample radar-evading characteristics. Its heavy weight makes it stouter than the J-20 and does not allow it to have the maneuverability of the Mighty Dragon. The JH-XX has more mass and is wider than the J-20.
It Could Become a Regional Powerhouse
However, the JH-XX has a heavier payload than the Mighty Dragon, and that spells trouble for the adversarial counties in China’s near abroad. The PLAAF could use a long-range fighter-bomber that is stealthy for potential attacks beyond the First Island Chain.
The JH-XX will have the kind of weapons delivery that can push the combat radius to allow attacks against Guam, Japan, and South Korea, plus the Philippines. The range of the JH-XX is 1,200 miles.
The JH-XX likely has a swing-role mode that enables it to toggle between an air superiority mission, including dogfighting and ground strike capabilities. This is the kind of versatility that China wants in a warplane.
More Details About Its Design
The design is noteworthy, producing agility and speed with decent stealth capabilities. “The new aircraft’s wing shape is a modified delta/diamond, with a multitude of trailing edge control surfaces, including split outboard ailerons for yaw control and braking.
Its leading edge starts far forward, flowing from the chines of a fighter-style nose cone, with a sharp inboard sweep angle until about a third of the way down, where the sweepback relaxes, though it maintains an aggressive angle overall. All of this points to a design optimized for high speeds,” ORF wrote.
Three Engines Give It More Power
Another significant aspect of the JH-XX is its three engines compared to the usual twin-engine configuration of other PLAAF fighter jets and bombers. This uses more fuel (about 50 percent more than two engines) but gives the stealth airplane an enviable range if it loses an engine. If that happens, it can still make it home safely. The JH-XX may also have supercruise ability, thrust vectoring, and afterburners.
What About Nuclear Weapons?
Another fear about the JH-XX is whether it is nuclear-capable. Since the payload is so large and the airplane is heavier, it is likely the JH-XX could deliver a nuclear device. The atomic warhead would likely be mated to a ground strike missile or cruise missile. China has around 600 nuclear weapons with a goal of producing 1,000 devices by 2030. The JH-XX would be a crucial component of the Chinese nuclear triad if it were nuclear-capable. Its long-range capabilities then place the quad allies—Australia, Japan, India, and the United States—in a quandary, as nuclear strategists must consider how to counteract the JH-XX in the Indo-Pacific.
The PLAAF has likely developed several features to enhance the survivability of the JH-XX. New avionics systems and sensors are likely on board, making it a true sixth-generation fighter-bomber. The JH-XX should be able to penetrate deeply into enemy air space, and Taiwan would have difficulty spotting it and reacting to a potential attack from the stealth fighter-bomber. The JH-XX certainly has the range to menace Taiwan, and the electronic warfare capabilities allow it to spoof and jam enemy radar.
It could be a Day One warplane for the PLAAF to lead a vanguard of other stealth airplanes to attack Taipei and eliminate Taiwanese air defenses, blinding radar for follow-on Day Two and Day Three attacks.
The JH-XX has the regional deterrence to give PLAAF what it always needs – an airplane that has multiple mission sets with decent range and the ability to deliver precision-guided munitions and even a potential nuclear weapon. The development of this airplane will be closely monitored by American intelligence analysts and those allied with the United States.
If the PLAAF continues to test it, the JH-XX will likely be spotted by internet sleuths. China usually doesn’t mind when prying eyes observe its test flights. This gets tongues wagging and whips up more speculation about how powerful the JH-XX will become someday.
The real test for the JH-XX is whether the PLAAF can make the fighter bomber nuclear-capable. This will give China more negotiating power in arms control talks that It has walked away from in the past.
Overall, the JH-XX will be a welcome addition to the PLAAF fleet. It features an advanced design that enables high levels of stealth. Three engines are significant. It has the range to dominate China’s backyard and can lead a powerful attack against Taiwan. The transition from air superiority to ground strike bombing is a sound concept. This grants the PLAAF greater versatility when devising tactical or strategic missions.
The JH-XX is thus one to watch and will encourage the United States and its allies to analyze it closely to determine how far the program advances this year.
About the Author: Dr. Brent M. Eastwood
Brent M. Eastwood, PhD is the author of Don’t Turn Your Back On the World: a Conservative Foreign Policy and Humans, Machines, and Data: Future Trends in Warfare plus two other books. Brent was the founder and CEO of a tech firm that predicted world events using artificial intelligence. He served as a legislative fellow for U.S. Senator Tim Scott and advised the senator on defense and foreign policy issues. He has taught at American University, George Washington University, and George Mason University. Brent is a former U.S. Army Infantry officer. He can be followed on X @BMEastwood.
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