J-20 Mighty Dragon

China's first operational fifth-generation stealth fighter — a twin-engine, low-observable air-superiority platform built by Chengdu, fielded exclusively by the PLAAF with an estimated 200+ aircraft in service, and now expanding into maritime strike.

Overview

The Chengdu J-20 (Jian-20), officially dubbed the Mighty Dragon (Weilong) and assigned the reported but unofficial NATO reporting name "Fagin," is the People's Liberation Army Air Force's (PLAAF) premier fifth-generation stealth air-superiority fighter. Developed by the AVIC Chengdu Aircraft Corporation (CAC), the J-20 is a large, twin-engine, canard-delta design optimized for long-range BVR engagement, low observability, and high-end networked operations. It entered PLAAF service in 2017 with combat-ready units stood up from approximately 2018, and has since become the centerpiece of China's fighter-modernization drive, with an estimated fleet exceeding 200 aircraft by 2024, according to the Mitchell Institute for Aerospace Studies. No export customers have been announced; the type remains exclusive to Chinese service.

Development

The J-20 emerged from a classified PLAAF requirement for a fifth-generation stealth fighter to counter the US F-22 and F-35. Chengdu's design — a large canard-delta configuration with twin side-mounted intakes, internal weapons bays, and faceted shaping for reduced radar cross-section — first flew on 11 January 2011, as documented by Wikipedia. The aircraft made its public debut at the Zhuhai Airshow in 2016 and was declared in PLAAF service the following year. Early production airframes were powered by Russian Saturn AL-31F engines; the shift to the indigenous WS-10C turbofan occurred on later batches, with the definitive high-thrust WS-15 engine reported to be in transition, according to Army Recognition. A twin-seat variant, the J-20S, has been reported as a command-and-control / loyal-wingman director platform, and in January 2026 a maritime-strike-capable J-20 variant was publicly noted by USNI News, signalling an expanding mission set beyond pure air superiority.

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