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J-20

Chengdu Aircraft · Fighter / Attack · China · Digital Age (2010–present)

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The Chengdu J-20 Mighty Dragon is a single-seat twin-engine stealth fighter built for the People's Liberation Army Air Force, and the first fifth-generation fighter outside the United States to reach operational service. Developed by Chengdu Aerospace Corporation under the J-XX programme, the prototype made its maiden flight in January 2011 and the type entered front-line PLAAF service in March 2017. That timeline placed China second only to the United States and its F-22 in fielding a stealth air-superiority fighter, and ahead of Russia's Su-57.

Chinese engineering priorities are visible throughout the airframe. Like the F-22, the J-20 carries its weapons internally, uses a faceted-edge planform, and shapes its inlets to mask the engine fans from radar. Where it diverges sharply is the canard-delta layout, with movable foreplanes ahead of the main wing — a configuration that sharpens manoeuvrability and high-alpha handling at the cost of a radar-cross-section penalty from the canards themselves. Length and wingspan track closely with the F-22, but the J-20 is heavier at roughly 25 tonnes empty against the Raptor's 19, hinting at a design biased toward range and payload rather than raw agility.

Propulsion has been the programme's longest-running headache. Early airframes (J-20A) flew on Russian Saturn AL-31F engines; an interim batch switched to the Chinese WS-10C; and the current J-20B, in production from 2022, uses the indigenous WS-15, which at last delivers supercruise and full thrust-vectoring. The deployed fleet is estimated at 200+ airframes by early 2026, with production reportedly running at 100+ aircraft per year — a faster pace than F-22 manufacturing ever sustained.

No combat sorties have been recorded as of 2026, but J-20s have intercepted US and allied aircraft over the East and South China Seas, and the type took pride of place at the 2024 Zhuhai air show. The two-seat J-20S — the first operational two-seat fifth-generation fighter anywhere — reportedly entered service in 2024, partly as a UCAV mothership tasked with directing unmanned wingmen.

For Kids — a shorter, friendlier version

The Chengdu J-20 is China's first stealth fighter. Designed to compete with the American F-22 Raptor and F-35 Lightning II, the J-20 entered Chinese Air Force service in March 2017. China has built about 250 J-20s as of 2026 — making it the second-most-numerous 5th-generation fighter in the world after the F-35.

The J-20 is large for a stealth fighter — about 67 feet long, longer than the F-22 (62 feet) or F-35 (51 feet). It has a unique look: long pointed nose, swept-back delta wings, canard wings (small forward wings near the cockpit), and twin angled tails. Two big Russian or Chinese engines give it Mach 2 top speed.

The J-20's mission is to defeat enemy fighters from far away. It carries up to 8 air-to-air missiles in internal weapons bays (to maintain stealth — external missiles ruin stealth shape). The newest version, the J-20A (2024), has improved Chinese-made WS-15 engines that allow super-cruise (sustained supersonic flight without afterburners) — matching the F-22's ability.

About 250 J-20s have been built between 2011 (first flight) and 2026. They serve only the Chinese People's Liberation Army Air Force. China keeps J-20 details mostly secret — Western experts can only guess at its real capabilities. The J-20 is built at Chengdu Aircraft Industry Group in Sichuan Province. Newer variants may have thrust-vectoring engines that would let the J-20 perform Cobra-style maneuvers like Russian fighters.

Fun Facts

The Chengdu J-20 is China's first stealth fighter — about 250 have been built since 2011.
It's the second-most-numerous 5th-generation fighter in the world (after the F-35).
The J-20 is larger than the F-22 — about 67 feet long, vs the F-22's 62 feet.
Has unique canard wings (small forward wings) — unusual for a stealth fighter.
The newest J-20A (2024) has Chinese-made WS-15 engines that allow super-cruise.
China keeps J-20 details mostly secret — Western experts can only guess at its capabilities.
The J-20 is built at Chengdu Aircraft Industry Group in Sichuan Province.

Kids’ Questions

How does the J-20 compare to the F-22?

The American F-22 Raptor is widely considered the world's best dogfighter — but it's also from 2005, while the J-20 is from 2017. The J-20 has newer electronics, better radar, and longer range. But the F-22 has thrust-vectoring engines and a more proven stealth design. Most Western experts think the F-22 is still better in close air-to-air combat, while the J-20 is better at long-range missile duels. The U.S. only built 187 F-22s; China is building J-20s at about 50 per year. Numbers may eventually outweigh quality if the gap continues. The next U.S. fighter (F-47 NGAD) is being built specifically to outclass the J-20.

What are canards?

Canards (pronounced "can-ARDS") are small forward wings located near the cockpit, in front of the main wings. They were named after the French word for "duck" — because the design looked duck-like. Canards help with agility — they provide extra lift and let the airplane turn faster. The Eurofighter Typhoon and the Saab Gripen also use canards. The downside is that canards may slightly hurt stealth (more surfaces = more radar reflection). The J-20's canards are an unusual choice for a stealth fighter — Western designers usually avoid them. China's engineers decided the canard's agility advantages were worth the small stealth cost.

Variants

J-20A: Initial production variant powered by Russian Saturn AL-31F engines.
J-20B: Current production variant with indigenous WS-15 engines providing supercruise and thrust vectoring.
J-20S: Two-seat variant in service from 2024. First operational two-seat fifth-gen fighter, intended for UCAV control and air-battle management.

Notable Operators

People's Liberation Army Air Force: Sole operator, with 200+ aircraft deployed across multiple PLAAF brigades by early 2026.

Frequently Asked Questions

F-22 vs J-20: which is better?

The F-22 has more mature stealth shaping, more advanced sensor fusion, and a longer record of operational refinement. The J-20 offers longer range, larger payload, and — in J-20B form — supercruise, and is rolling off the line faster per year than the F-22 ever did. Western analysts generally rate the F-22 ahead in pure air-to-air capability but acknowledge that the J-20's threat is rising.

How many J-20s does China have?

By early 2026 the PLAAF operates 200+ J-20s, with production reportedly accelerating to 100+ aircraft per year. China's stated goal is to field 1,000+ J-20s by the early 2030s.

Is the J-20 stealth?

Yes — the J-20 features internal weapons bays, faceted edges, and S-duct intakes, but its canard-delta layout adds radar cross-section compared with the tail-only configuration of the F-22. Western estimates place the J-20's frontal RCS larger than the F-22's but smaller than the Su-57's.

What engines does the J-20 use?

Early aircraft flew on Russian Saturn AL-31FN engines. Mid-production aircraft switched to the Chinese Shenyang WS-10C. Current J-20B production aircraft use the indigenous Shenyang WS-15 — a high-thrust supercruise-capable engine that finally meets the airframe's original design requirement.

Has the J-20 seen combat?

No — the J-20 has not seen combat as of 2026. It has flown high-profile intercepts of US, Japanese, and Indian aircraft over the East China Sea, South China Sea, and Sino-Indian border, but no shots-fired engagements have been reported.

Sources

Chengdu J-20 — Wikipedia — Source text adapted under CC BY-SA 4.0