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
Comparison between J-20’s old and new engines in the above photos shows the improvement China has made in J-20’s engines.
The photo below shows the climb-up of a J-20 with new engines.
Source: mil.huanqiu.com “Comparison shows what changes there are in J-20’s engines” and “The beautiful curve of air flow drawn by J-20’s test flight” (summary by Chan Kai Yee based on he report in Chinese)
When the US wanted China to respect Hague arbitration ruling to give up China’s rights and interests in the South China Sea, Chinese troops conducted its largest drill there and Chinese navy chief pointed his finger at his US counterpart in his talks with him. Soon afterwards Chinese air force began to conduct combat patrol in the South China Sea especially on the disputed Scarborough Shale.
Now, Reuters says in its report “Trump nominee says China should be denied access to South China sea islands”, “U.S. President-elect Donald Trump’s nominee for secretary of state set a course for a potentially serious confrontation with Beijing on Wednesday, saying China should be denied access to islands it has built in the contested South China Sea.”
What does that mean?
It means the nominee Rex Tillerson wants a real war instead of trade war with China.
The US is preparing for that as it has been sending a squadron of F-35, its most advanced fighter jets, to Japan for the war.
China is not less prepared as it has been stepping up the development, production and deployment its most advanced fighter jet J-20s so that if the US hurts China’s core interests of its rights and interests in the South China Sea, China has to fight. The Chinese ruling party the CCP will become extremely unpopular if it is afraid to fight.
We hope it will be a limited war between the two powers as the US cannot send its army to invade China given China’s huge modern army and US experience of defeat in Korean War. China, on the other hand, is utterly unable to send its army to the US.
China is now able to win the naval war as China’s J-20 is superior to F-35 in a war of defense and China can sink US aircraft carriers with saturate attack of its large number of anti-ship ballistic and cruise missiles.
What will follow then? Attack China with nuclear weapons in retaliation? That will be the end of human race.
Do Trump and his nominee Rex Tillerson want that?
Let’s hope that Rex Tillerson’s hardline statement is but rhetoric.
Comment by Chan Kai Yee on Reuters’ report, full text of which is reblogged below:
Trump nominee says China should be denied access to South China sea islands
By David Brunnstrom and Matt Spetalnick | WASHINGTON January 11, 2017
U.S. President-elect Donald Trump’s nominee for secretary of state set a course for a potentially serious confrontation with Beijing on Wednesday, saying China should be denied access to islands it has built in the contested South China Sea.
In comments expected to enrage Beijing, Rex Tillerson told his confirmation hearing before the U.S. Senate Foreign Relations Committee that China’s building of islands and putting military assets on those islands was “akin to Russia’s taking Crimea” from Ukraine.
Asked whether he supported a more aggressive posture toward China, he said: “We’re going to have to send China a clear signal that, first, the island-building stops and, second, your access to those islands also is not going to be allowed.”
The former Exxon Mobil Corp (XOM.N) chairman and chief executive did not elaborate on what might be done to deny China access to the islands it has built up from South China Sea reefs, equipped with military-length airstrips and fortified with weapons.
Tillerson also said Washington needed to reaffirm its commitment to Taiwan, which Beijing regards as a renegade province, but stopped short of Trump’s questioning of Washington’s long-standing policy on the issue.
“I don’t know of any plans to alter the ‘one China’ position,” he said.
Tillerson said he considered China’s South China Sea activity “extremely worrisome” and that it would be a threat to the “entire global economy” if Beijing were able to dictate access to the waterway, which is of strategic military importance and a major trade route.
He blamed the current situation on what he termed an inadequate U.S. response. “The failure of a response has allowed them just to keep pushing the envelop on this,” Tillerson said.
“The way we’ve got to deal with this is we’ve got to show back up in the region with our traditional allies in Southeast Asia,” he said.
Democratic President Barack Obama’s administration conducted periodic air and naval patrols to assert the right of free navigation in the South China Sea. These have angered Beijing, but seeking to blockade China’s man-made islands would be a major step further and a step that Washington has never raised as an option.
Tillerson’s words also went beyond Trump’s own tough rhetoric on China.
Obama has sought to forge a united front in Southeast Asia against China’s pursuit of its territorial claims, but some allies and partners who are rival claimants have been reluctant to challenge Beijing.
Tillerson called China’s South China Sea island-building and declaration of an air defense zone in waters of the East China Sea it contests with Japan “illegal actions.”
“They’re taking territory or control, or declaring control of territories that are not rightfully China’s,” he said.
Tillerson also said the United States could not continue to accept “empty promises” China had made about putting pressure on North Korea over that country’s nuclear and missile programs.
He said his approach to dealing with North Korea – which recently declared it is close to carrying out its first test of an intercontinental ballistic missile – would be “a long-term plan” based on sanctions and their proper implementation.
Asked if Washington should consider imposing “secondary sanctions” on Chinese entities found to be violating existing sanctions on North Korea, Tillerson said: “If China is not going to comply with those U.N. sanctions, then it’s appropriate … for the United States to consider actions to compel them to comply.”
He accused China of failing to live up to global agreements on trade and intellectual property, echoing past remarks by Trump, who has threatened to impose high, retaliatory tariffs on China. But Tillerson also stressed the “deeply intertwined” nature of the world’s two biggest economies.
“We should not let disagreements over other issues exclude areas for productive partnership,” he said.
(Reporting by David Brunnstrom and Matt Spetalnick; Editing by Jonathan Oatis)
The above details of J-20’s nose show its advance characteristics as a fifth-generation stealth fighter jet.
Source: mil.huanqiu.com “Those characteristics show the true nature of J-20 as a fifth-generation warplane” (summary by Chan Kai Yee based on the report in Chinese)
According to Russian military observation website, China is producing J-20 faster than US F-35B and F-35C to ensure China’s air superiority in long- and super long-range air battles.
A regiment of 30 J-20s is enough to quickly and effectively intercept US early warning and manned and unmanned reconnaissance aircrafts, turning US military blind in areas near China.
With the production capacity of making 36 J-20s a year, China will have a regiment of J-20s by mid 2018.
In addition, 2 J-20 regiment (60 planes) plus dozens of DF-21D are enough to drive away US and Japanese navies. The US may develop better missiles to intercept DF-21D and even DF-26 as US AN/SPY-1A/D multi-function radar can detect the ballistic missiles. However US radar cannot detect a fleet of 10 J-20s conducting stealth attack at US navy with their radars turned off. The 20 YJ-91 supersonic anti-ship missiles carried by those J-20s are enough to sink a US aircraft carrier.
China is now developing hypersonic microwave electromagnetic warheads and stealth warheads even more difficult to intercept. China will have 500 J-20s by 2026, which will enable it to have advantages over others’ navy in the Indian and Pacific Oceans.
Source: mil.huanqiu.com “Russian media: US aircraft carrier battle group doomed facing fleet of J-20s” (summary by Chan Kai Yee based on the report in Chinese)
The above set of 6 connected photos describe the moment when J-20 has started its booster to climb up. The deflection of the canard and the large amount of vortex flow prove J-20’s wonderful pneumatic design.
Source: mil.huanqiu.com “Six connected photos of J-20 fighter jet’s moment of boosted climb” (summary by Chan Kai Yee based on the report in Chinese)
The above detailed photos I posted in my post “Super Clear Photos of Details of China’s J-20 Stealth Fighter Jet” on January 5 show its pilot’s counter-pressure uniform and new-type helmet, integrated LCD display and side-lever operation system according to Hong Kong Economic Times’ report. The photos prove for the fist time the side-lever operation of J-20, which enables the pilot to sit in a little slant position so that the fighter jet has better capability to counter overload.
Source: mil.huanqiu.com “Hong Kong media: Disclosure of detailed photos of J-20’s cabin: Side-lever operation may counter large overload” (summary by Chan Kai Yee based on the report in Chinese)