Aircraft & UAVs

Chengdu J-20

Also known as
  • Weilong
  • Mighty Dragon
  • Fagin

The Chengdu J-20 is China's twin-engine low-observable fighter built by Chengdu Aircraft Industry Group for the PLAAF. Public sources place its first flight in 2011, official commissioning in 2017, crisis-response drill appearances around Taiwan in 2022, rapid brigade expansion by 2024, and an upgrade path centered on WS-15 engines, larger low-observable missile loads, and the two-seat J-20S.

Chengdu J-20, Stealth air superiority fighter, Aircraft & UAVs
Image source: File:J-20 fighter (44040541250) (cropped).jpg

Role in Conflicts

2022 Fourth Taiwan Strait Crisis
DeterrenceArea Denial
Side
People's Republic of China

Chinese state-linked reporting tied J-20 takeoffs and PLA air activity to the August 2022 drills around Taiwan; CSIS separately cautioned that Taiwan did not confirm J-20 operations inside Taiwan's ADIZ.

Profile / Specs

Profile

Origin
China
Type
Stealth air superiority fighter
Service note
2010s-present
Produced
2015-present
Number built
Public estimates vary; CASI assessed around 160 to 200 PLAAF J-20 airframes in varying readiness states in April 2024.

Specifications

Crew
1
Crew, J-20S
2
Length
66.9 ft (20.4 m)
Wingspan
44.3 ft (13.5 m)
Max takeoff weight
81,600 lb (37,000 kg)
Maximum speed
Mach 2
Combat range
1,080 nautical miles (2,000 km)
Ceiling
65,617 ft (20,000 m)
Power plant
2 x WS-10B, WS-10C, AL-31FM2, or WS-15 turbofans reported by public sources
Armament
PL-10, PL-12, and PL-15 air-to-air missiles; LS-6 guided bombs
Internal PL-15 carriage
IISS reports four PL-15 missiles can be carried in the main weapons bay
Documented PLAAF force posture
CASI identified J-20 combat-unit adoption across multiple theater commands by 2024
Operational Posture

Open sources describe the J-20 as an operational PLAAF fighter with crisis-drill appearances, not as a combat-proven export or battlefield system. China Daily tied J-20 takeoffs to the August 2022 PLA exercises around Taiwan, while CSIS recorded Taiwan's caution that J-20 operations inside Taiwan's ADIZ were not confirmed. CASI separately identified combat aviation brigades operating or transitioning to the aircraft across Eastern, Southern, Northern, Central, and Western Theater Commands by 2024.

Known operator

People's Liberation Army Air Force.

Public sources do not identify an export operator.

Crisis context

August 2022 Taiwan Strait drills and deterrence operations around Taiwan, with no confirmed J-20 ADIZ penetration in the cited CSIS tracker.

Upgrade direction

U.S. reporting points to larger internal air-to-air missile loads, thrust vectoring, WS-15 engines, and supercruise as prepared upgrades.

Variants

Public sources distinguish the baseline J-20, domestically powered J-20A or upgraded airframes, and the officially unveiled two-seat J-20S; some Western reporting uses J-20B for a thrust-vectoring or interim upgrade path, but Chinese public designations remain limited.

VariantConfigurationDesignation notes
J-20Baseline single-seat fighter

Commissioned into military service in 2017 after the 2011 first flight and public Zhuhai debut.

Sources: Does China's J-20 Rival Other Stealth Fighters?

J-20ADomestically powered upgraded variant

U.S. Defense Department reporting says the PLAAF is preparing J-20 upgrades that may include WS-15 engines, thrust-vectoring nozzles, supercruise, and increased low-observable air-to-air missile carriage.

Sources: 2024 China Military Power Report

J-20STwo-seat multirole variant

Defense News reported that AVIC displayed the J-20S mock-up at Zhuhai in 2024 and described roles including long-range operations, precision strike, electronic jamming, and tactical command and control.

Sources: Defense News Zhuhai 2024 J-20S

Carried Munitions

Mitchell's weapon fit listing shows the J-20 with air-to-air missiles and the LS-6 guided bomb family, while IISS says the fighter can carry four PL-15s internally.

Carried itemItem typeCarriage evidence
PL-15 / PL-15E, Beyond-visual-range air-to-air missile, MunitionsPL-15 / PL-15EExtended-range air-to-air missile

Mitchell lists the PL-15 in the J-20's air-to-air missile fit, and IISS says the fighter can carry four PL-15s in its main weapons bay.

Sources: J-20 Technical Data, IISS APRSA 2024 Chapter 6

LS-6 guided bomb family, Satellite-aided inertially guided glide bomb family, MunitionsLS-6 guided bomb familyGuided bomb family

Mitchell lists LS-6 guided bombs as part of the J-20's armament.

Sources: J-20 Technical Data

Unlinked carried missiles

Mitchell lists PL-10 and PL-12 missiles for the J-20, but no exact PL-10 or PL-12 catalog record exists yet.

Sources: J-20 Technical Data

Timeline

Chengdu J-20 Key Events

  1. First flight

    The J-20 completed its first test flight in Chengdu in January 2011.

    Sources: Does China's J-20 Rival Other Stealth Fighters?

  2. Commissioned into service

    China's defense ministry officially commissioned the J-20 into military service in 2017.

    Sources: Does China's J-20 Rival Other Stealth Fighters?

  3. Two-seat variant observed

    The U.S. Defense Department reported that PRC social media revealed a new two-seat J-20 variant in October 2021.

    Sources: 2024 China Military Power Report

  4. Eastern Theater brigade transition visible

    CASI assessed that satellite imagery from November 2023 showed six J-20 airframes at Wuyishan Airbase as the 41st Aviation Brigade transitioned to the type.

    Sources: CASI 41st Aviation Brigade J-20 Transition

  5. J-20S displayed at Zhuhai

    AVIC showed a mock-up of the two-seat J-20S at Airshow China 2024, according to Defense News coverage from Zhuhai.

    Sources: Defense News Zhuhai 2024 J-20S

Media

Chengdu J-20 Videos

Chengdu J-20 Images

Chengdu J-20, Stealth air superiority fighter, Aircraft & UAVs - view 1
Source: File:J-20 fighter (cropped).jpg
Chengdu J-20, Stealth air superiority fighter, Aircraft & UAVs - view 2
Source: File:Chengdu J-20.svg
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Shenyang J-11, Air-superiority fighter aircraft, Aircraft & UAVsAircraft & UAVsShenyang J-11Air-superiority fighter aircraftThe Shenyang J-11 is a Chinese Flanker-family air-superiority fighter derived from the Sukhoi Su-27SK and built by Shenyang Aircraft Corporation. The family moved from license-produced J-11/J-11A aircraft into domestically upgraded J-11B, naval, trainer, J-11BG, and J-11D branches, with later versions adding Chinese avionics, WS-10-series engines, and PL-10/PL-15-class missile compatibility. Its directly documented dispute record centers on People's Liberation Army air intercepts over the South China Sea rather than a conventional shooting war.

Sources

J-20 Technical DataPublisher: Mitchell Institute for Aerospace Studies | Note: Supports manufacturer background and technical data: the page lists Chengdu Aircraft Industry Group as contractor, the PLAAF as operator, IOC in 2017, and the J-20's dimensions, propulsion, range, ceiling, and missile fit. | Accessed: 2026-07-03IISS APRSA 2024 Chapter 6Publisher: International Institute for Strategic Studies | Note: Supports the J-20's internal carriage of four PL-15 missiles and associated aircraft context. | Accessed: 2026-07-03Does China's J-20 Rival Other Stealth Fighters?Publisher: CSIS ChinaPower | Note: Supports origin/background and the service timeline; ChinaPower describes the J-20 as the first Chinese aircraft to fit the fifth-generation fighter description and records first flight in 2011 and official commissioning into military service in 2017. | Accessed: 2026-07-03PLA Continues Combat Exercises Around TaiwanPublisher: China Daily Hong Kong | Note: Supports 2022 Fourth Taiwan Strait Crisis direct use: China Daily reported that the Eastern Theater Command mobilized J-20 stealth fighters and showed J-20 takeoffs during PLA exercises and deterrence operations around Taiwan in August 2022. | Accessed: 2026-07-03CSIS Fourth Taiwan Strait Crisis TrackerPublisher: CSIS ChinaPower | Note: Supports 2022 Fourth Taiwan Strait Crisis context and sourcing limits: CSIS tracked the August 2022 PLA exercises and recorded Taiwan's statement that J-20s were not confirmed operating inside Taiwan's ADIZ on August 3. | Accessed: 2026-07-032024 China Military Power ReportPublisher: U.S. Department of Defense | Note: Supports J-20 operational fielding, the October 2021 public appearance of a two-seat variant, and prepared upgrades including larger low-observable air-to-air missile carriage, thrust-vectoring nozzles, supercruise, and WS-15 engines. | Accessed: 2026-07-03CASI 41st Aviation Brigade J-20 TransitionPublisher: China Aerospace Studies Institute | Note: Supports J-20 force-posture context, including the 41st Aviation Brigade transition visible at Wuyishan Airbase, combat-unit adoption dates, and a 2024 estimate of roughly 160 to 200 PLAAF airframes in varying readiness states. | Accessed: 2026-07-03Defense News Zhuhai 2024 J-20SPublisher: Defense News | Note: Supports the J-20S mock-up display at Zhuhai Airshow 2024 and AVIC-described two-seat roles including long-range operations, precision strikes, electronic jamming, and command and control. | Accessed: 2026-07-03File:J-20 fighter (44040541250) (cropped).jpgPublisher: Wikimedia Commons | Note: Supports image provenance for the primary J-20 image. | Accessed: 2026-07-03File:J-20 fighter (cropped).jpgPublisher: Wikimedia Commons | Note: Supports image provenance for the gallery J-20 image. | Accessed: 2026-07-03File:Chengdu J-20.svgPublisher: Wikimedia Commons | Note: Supports image provenance for the gallery J-20 silhouette image. | Accessed: 2026-07-03