The Chengdu J-7 is a lightweight fighter aircraft developed by China, based on the Soviet MiG-21. First produced in the 1960s, the J-7 became China’s main interceptor fighter for several decades and was widely exported to countries in Asia, Africa, and the Middle East.
Although outdated by today’s standards, the J-7 is still in service with some air forces, mainly used for training or low-cost air defense. In North Korea, it’s estimated that over 100 units of the J-7 or its Soviet counterpart, the MiG-21, exist — although many are no longer operational.
Due to its lightweight and simple structure, the J-7 is considered a solid platform for modifications, such as target drones, remotely piloted aircraft, and — as seen in the case of the Saebyeol-4 drone — possible experimental projects.
It is believed that the Saebyeol-4 uses parts of the J-7’s landing gear and possibly its engine, suggesting North Korea’s effort to develop advanced drone technology using available components from its arsenal.
Technical Specifications – Chengdu J-7 (F-7)
| Specification | Details |
|---|---|
| Origin | China (based on the Soviet MiG-21) |
| Manufacturer | Chengdu Aircraft Corporation |
| Type | Light fighter/interceptor (supersonic) |
| First flight | 1966 |
| Entered service | 1967 |
| Crew | 1 pilot |
| Length | ~14.9 m |
| Wingspan | ~7.15 m |
| Height | ~4.1 m |
| Empty weight | ~5,300 kg |
| Max takeoff weight | ~9,100 kg |
| Engine | 1 × WP-7B turbojet (Chinese version of Tumansky R-11) |
| Thrust | ~6,000 kgf with afterburner |
| Top speed | ~2,000 km/h (Mach 2.0) |
| Range | ~2,000 km (with external tanks) |
| Service ceiling | ~17,000 m |
| Armament | 2 x 30 mm cannons + up to 2,000 kg of external payload |
| Typical payload | Air-to-air missiles, rockets, light bombs |
| Notable users | China, Pakistan, Bangladesh, Iran, Egypt, North Korea, among others |
Photos: Wikimedia. This content was created with the help of AI and reviewed by the editorial team.
