Photos of J-20’s Advanced Diverterless Supersonic InletsPosted: January 18, 2017
Diverterless supersonic inlet (DSI), according to Wikipedia, is less complex, more reliable and lighter than other inlets. In addition, Wikipedia says “DSIs also crucially improve the aircraft’s very-low-observable characteristics (by eliminating radar reflections between the diverter and the aircraft’s skin). Additionally, the ‘bump’ surface reduces the engine’s exposure to radar, significantly reducing a strong source of radar reflection because they provide an additional shielding of engine fans against radar waves.”
Of the six fighter jets with DSI in Wikipedia’s list, all are Chinese ones (J-10B, JF-17, J-20, J-31 and JL-9) except America’s F-35.
Therefore, China’s mastery of DSI technology is well-known in the world. There is no need for mil.huanqiu.com to show off the above photos of J-20’s DSI.
However, as Chinese military fans are much interested in J-20’s functions and performance, they have taken and posted photos of J-20’s DSI to show their pride in China’s success. They are especially happy in doing so as Chinese government is not willing to do so.
That makes pro-US people, especially military fans, unhappy. Some of them give elaborate description of F-35’s superiority and exaggerated J-20’s weakness.
That certainly makes pro-Beijing readers unhappy. However, according to my experience, people indeed have helped me a lot by pointing out my errors and shortcomings no matter whether their intention is kind or not. I will be very happy if the pro-US readers point out J-20’s shortcomings. However, as they have no source of information, they are unable to effectively do so.
That is really a pity.
If they have professional knowledge, they may be able to find something unsatisfactory in the photos taken by Chinese fans that aimed at showing off J-20’s superiority.
Maybe they do have such knowledge, but Chinese fans refrain from posting photos that reveal anything unsatisfactory in J-20.
Indeed, pro-US readers should not be unhappy. They should know very well that those Chinese fans have PLA internal sources so that they need not wait day and night by the side of Chinese airfields to take photos of J-20’s test flights. The internal sources reveal to the fans before the tests and told them the time and place they can take photos satisfactorily and what they should included in their photos to show off J-20’s advantages.
Pro-US military fans simply have no such access to enable them to take photos of J-20’s test flights to find and show off J-20’s shortcomings. What a pity! They cannot help China improve J-20 by making China aware of J-20’s shortcomings.
In comparison, US military is better. They are too anxious to show off F-35. That perhaps scares its enemy. However, it enables its enemies to know in designing their rivals to F-35 what they need to include and what not. That saves them much costs and time. Moreover, it enables them to learn from F-35’s good design, functions and performance and include F-35’s good design in their designs.
It is good for US military that they can learn F-35’s shortcomings from unfavorable comments on what they have disclosed about F-35, but bad that others may copy F-35’s designs and know what their aircrafts shall have to deal with F-35.
China, however, keeps strict confidential information about J-20. It follows Sun Tzu’s teaching: The art of war is an art of deception; therefore show what you are unable to do when you are able to and you are not to use your military when you are …”
Comment by Chan Kai Yee on mil.huanqiu.com’s report “There is something profound in J-20’s air inlets: It caves in?”. The original report in Chinese can be found at http://mil.huanqiu.com/photo_china/2017-01/2858732.html