J-7FS: Developmental technology demonstrator built by CAC as the successor of earlier J-7F, with S stands for Shi-yan (试验, meaning experimental in Chinese). JF-7S utilizes WP-13IIS engine and a redesigned under-chin inlet similar to that of Vought XF8U-3 Crusader III , with a divider inside the intake.

The Chengdu J-7 (Chinese: 歼-7; third generation export version F-7; NATO reporting name: Fishcan[1]) is a Chinese fighter aircraft. It is a license-built version of the Soviet Mikoyan-Gurevich MiG-21, and thus shares many similarities with that aircraft. [2] .

最终，歼7FS对歼7II机身进行了针对性改进，包括前机身加长更改，取消机头进气、采用下颌进气道设计方案，加装一台推力超7000公斤的 涡喷-13FII型发动机，从而获得更大的推力和载弹量、更强的机动性能。 此外，由于机头空间更大，歼7FS装备的是从以色列进口的 LE/M2032小型多功能脉冲多普勒火控雷达。 该雷达探测距离可达60千米，可同时跟踪8个目标，也可使用国产雷达制导中距空空导弹，打击距离也大大扩大。 相比之下，歼7原本装备的 “空中巡逻兵”226小型火控 …

Sep 14, 2022 · J-7MF - Proposed modernized J-7FS; underfuselage intake; positional wing canards.

As the main force in China's second-generation fighter jet fleet and the country's most experienced fighter jet currently still in service, the J-7 has a ceiling of more than 20,000 meters and a...

Nov 7, 2011 · The J-7FS emerged in 1998 and was used to test the chin air intake and engine for the production J-7MG. The heavily modified F-7FS testbed was based on the earlier F-7II, but has a chin air...

Fire control SM-3A optical sight (J-7); AFS-3A lead-computing sight with Type 222 ranging radar input (J-7II); GEC-Marconi Type 956 HUD, and weapon-aiming computer system with input from the...

J-7C (originally J-7 III): Chinese equivalent of MiG-21MF, with blown flaps and all-weather, day/night capability. Main improvements are change to WP13 engine with greater power; additional fuel in deeper dorsal spine; JL-7 (J-band) interception radar, with correspondingly larger nose intake and centrebody radome; sideways-opening (to starboard ...

Oct 19, 2024 · This makes the improved design of the J-7FS suitable for improving earlier versions of the J-7 and MiG-21. In addition, in order to further improve the power performance, the J-7FS was equipped with the WP-13F II engine.

The J-7FS modification adds a radar to a reconfigured air intake, while the "Super 7" upgrade would have completely reworked the front end of the aircraft, adding a much larger radar and ventral air inlets, along with various other less pronounced improvements.