Key Points and Summary on J-20 – China’s J-20 “Mighty Dragon” is a formidable fifth-generation stealth fighter, but its design has one glaring and potentially fatal flaw: it has no internal gun.
-This makes the J-20 unique among its peers like the F-22 and F-35 and suggests a doctrine that avoids close-range dogfights in favor of long-range missile engagements.
-While this focus on beyond-visual-range combat is a strategic choice, the lack of a cannon for close-in fights or ground strafing remains a significant and controversial vulnerability for China’s premier stealth aircraft, which has yet to be tested in actual combat.
-But That Isn’t the Key Weakness: That one clear weakness is a lack of combat experience.
The J-20 Stealth Fighter Explained by a Top Defense Expert
When it comes to fielding 5th Generation stealth fighter aircraft, the United States of America got its first, thanks to the F-22 Raptor and the F-35 Lightning II, both products of Lockheed Martin’s legendary Skunk Works division.
But China has been working hard to ensure it has its very own stealth fighter to compete with both America’s and Russia’s much-debated Su-57 Felon fighter.
And that means I am going to talk about China’s J-20 Mighty Dragon fighter, a stealth warplane burning up the internet over the last decade or so.
J-20 Weilong (“Mighty Dragon”) Initial History
The J-20 traces its roots back to the J-XX program of the 1990s.
Designed and manufactured by the Chengdu Aircraft Corporation (headquartered in the eponymous regional capital of Sichuan, China), the J-20 made its maiden flight on 11 January 2011, was unveiled for the public eye at the 2016 China International Aviation & Aerospace Exhibition, and entered into official operational service with the People’s Liberation Army Air Force (PLAAF) on 9 March 2017.
The result was a twin-engine all-weather air superiority stealth fighter with precision strike capability, giving the People’s Republic of China bragging rights as the first Asian nation to produce an operational stealth fighter.
Reportedly, over 300 airframes have been built thus far.
Besides the standard version, this includes the J-20A—which incorporates upgrades such as a slightly raised cockpit, enlarged spine, reshaped nosecone, and modified engine intakes—and the twin-seat J-20S.
J-20 Technical Specifications and Vital Stats
Crew: 1 or 2 (depending on variant)
Fuselage Length: 69 feet 7 inches
Wingspan: 42 feet 8 inches
Height: 15 feet 5 inches
Max Takeoff Weight (MTOW): 81,571 lbs.
Powerplant: 2 × Shenyang WS-10C afterburning turbofans generating 142–147 kilonewtons (32,000–33,000 pounds-force) of thrust
Max Airspeed: Mach 2.0
Ferry Range: 3,400 miles with 2 external fuel tanks)
Combat Range: 1,200 miles)
Service Ceiling: 66,000 meters (52,000 feet)
Rate of Climb: 59,800 feet per minute
Armament-wise, the Weilong wields a formidable arsenal, including two short-range PL-10 air-to-air missiles (one in each air-intake bay) and six to eight medium-range P-12s in the main internal weapons bay below the mid-fuselage.
No Gun for J-20 Stealth Fighter? Mistake?
However, conspicuous by its absence from the Mighty Dragon’s fire-breathing arsenal is a gun.
That makes it unique amongst the currently operational stealth fighters, as its US-made and Russian-made counterparts still do in fact have a cannon.
Playing devil’s advocate, one could rationalize the lack of a gun by noting that old-fashioned dogfighting is becoming an increasingly obsolescent form of aerial combat.
Indeed, history’s only recorded supersonic air-to-air gun kill was scored way back on 2 June 1972 during the Vietnam War, when US Air Force F-4E Phantom II pilot Col. Phil “Hands” Handley bagged a North Vietnamese MiG-19 “Farmer” with his M61 Vulcan 20 mm rotary cannon.
Still, when it comes to a gun, there’s something to be said about the philosophy of “Better to have and not need than vice versa.” For one thing, even though it’s been 53 years since a jet fighter used a gun to shoot down a manned enemy aircraft, in far more recent times, aircraft-mounted cannons have proved their usefulness against *unmanned* enemy aerial weapons systems.
Case in point: on 13 December 2024, a Ukrainian Air Force F-16 pilot became a national hero when he shot down six Russian cruise missiles in a single sortie; two of those kills were in fact obtained with the F-16’s M61 Vulcan.
What’s more, a fighter plane could still conceivably use its gun in the air-to-ground role, such as strafing enemy troop formations whilst performing close air support (CAS) duties. The J-20 inherently lacks this sort of versatility.
The J-20 and A Big Weakness: No Combat Experience
Besides the lack of gun, another thing that differentiates the J-20 from the F-22, F-35, and Su-57 alike is that the Chinese warbird hasn’t yet been “blooded” in actual combat.
This is not surprising, since the PRC hasn’t been in a major war since its 1979 invasion of Vietnam. But that doesn’t mean that the Weilong hasn’t been playing an active and impactful role. The PLAAF has used the “Fagin” in several show of force missions in the Taiwan Strait, including one on 14 October 2024.
In addition, back in March 2022, USAF General Kenneth Wilsbach, Commander, Pacific Air Forces, publicly stated that American F-35s had had at least one encounter with J-20s over the East China Sea.
Gen. Wilsbach didn’t specify the date(s) or if more than one such encounter took place, but did note that “It’s a bit early to say what they intend to do with the J-20, so really all we’ve seen it do is air superiority…But we notice that they are flying it pretty well. We recently had – I wouldn’t call it an engagement – where we got relatively close to the J-20s along with our F-35s in the East China Sea, and we’re relatively impressed with the command and control associated with the J-20.”
The Way Forward for the J-20
Given China’s ever-increasing belligerence in the Indo-Pacific region, not only against Taiwan but against other American allies such as the Philippines and Vietnam, the “Fagin” will continue to be a tangible symbol of China’s ability to bully and intimidate those nations.
Furthermore, since not only the United States but two of its allies in the Quad, namely Australia and Japan, have the F-35, you can bet that the PRC will want to make good use of its stealth fighter capabilities in case an actual shooting war were to break out in the region.
About the Author: Christian D. Orr, Defense Expert
Christian D. Orr is a Senior Defense Editor. He is a former Air Force Security Forces officer, Federal law enforcement officer, and private military contractor (with assignments worked in Iraq, the United Arab Emirates, Kosovo, Japan, Germany, and the Pentagon). Chris holds a B.A. in International Relations from the University of Southern California (USC) and an M.A. in Intelligence Studies (concentration in Terrorism Studies) from American Military University (AMU).
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pagar
July 13, 2025 at 8:46 am
Forget the j-20.
China, if it truly uses just half its brains, should by now be busily working on suborbital craft that are powered by rbcc engines.
J-20 is strictly yesterday’s stuff.