Reading over and over this SCMP article, eventually I can't help my self of the laughters
LOL
"Military insiders said the appearance of J-20s in the air force was meant as a warning to Japan and South Korea, which are expected to buy US F-35 stealth fighters now that China has equally advanced warplanes."
"A source close to the PLA said the J-20s were all equipped with home-made WS-15 engines, but because the engine had not entered mass production, only a few J-20s were available for service."
“There are still a series of technical problems that need to be tackled [on the J-20], including the reliability of its WS-15 engines, [and the plane’s] control system, stealth coat and hull materials and infrared sensor,” said the source, who requested anonymity. ===> well, so many lingering problems; in that case it is not a serious asset, yet
and pose no deterrence value!
Ha ha ha... above paragraphs are just contradictory each other
lol
Those who read this article will hardly understand the underlying message... and if SCMP is a yellow publication then I may understand, but it is not.
So what's the real message? It's everyone's guess.
I let everyone to interpret it
ha ha ha
It's written by your typical know-nothing journalist.
For a prediction made in 7-8 years in advance, its timeliness is quite remarkable.
It shows how methodical all the related works on this J-20 project are. And the Chinese authority seems not favoring bluffing mode about its capability, esp. when a high officer talks to the media, his words carry lots of weight. Talk down own self is more likely
The work is carrying out smoothly and speedily because most of the design work was carried out in the Supercomputer using Advance CAD/CAM, Fluid Dynamic Computational Software, developed by China.
As we can see, the overall shape, and dimension of J-20 changed remarkably little over the years. Yes, there are continuously fine tuning, but no major redesigns. That means they got it mostly right, the first time.
I bet not one traditional blueprint, printed in paper, was needed. It went straight from the 3-D CAD/CAM design software to manufacturing. All the design was done within the Supercomputers, which China has plenty now.
I bet one day of work with the Computerized Design Software, is probably equivalent of, two months of pencil and drawings, on the drafting table.
Traditional design, takes literally ,a mountain of blueprints, for all the parts. Just to draw them correctly and interpret them correctly, takes a lot of time and effort.
The same tremendous saving in time and effort happens with Engine design as in Airframe design. That's why, I was confident that J-20, was already running with WS-15, from day one, back in 2010.
All the fools, who believes otherwise, have no idea about the power and efficiency of modern CAD/CAM and CFD software, combined with the ever increasing incredible speed of Supercomputers.