I shift between enjoying the schaudenfreude and feeling the self schaudenfreude that is the recognition of how much I (and we all) had to suffer through the hollow brained insistences and stubbornness of eyeball aerodynamics pretend experts.
J-20 5th Gen Fighter Thread VI
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broadsword
Brigadier
Oh, we enjoy. No doubt about that.
I recall reading a poster on CJDBY (aerospace grad student) who answered "I can't just eye ball the design. I'll need to test the data in a wind tunnel" when someone told him to analyze J-20's aerodynamics.
As AirForceBrat same thing happened with the F-35. Before it blew people away at the Paris Air Show in 2017 everyone called it a pig because it looked chubby.
Yep. Something I learned over the years is that what you *really* need to know is what the pressure distribution across the entire airframe looks like at each angle of attack and orientation to know what performance looks like. This makes assessment very complicated, but that is further compounded by the fact that performance is not a one dimensional metric. It is a multidimensional metric that’s very difficult to summarize in a categorical way, and that difficulty is compounded even more by the fact that tactical utility conditions those performance metrics further.
My doubts about the F-35 was always more in the program than the kinematics.
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and here I want to bring forward the (SDF post of the day), of the many excellent posts today, today has been a day like SDF of the past, outstanding thinking and good manners, beautiful pictures and videos, but here my friend latenlazy, (I love this name man, takes a big man to wear it) through the "scientific method of observation" has taken those beautiful pictures of vortices lift and dissected the brilliant aerodynamics of the J-20, proving that a thoughtful man provided with photographic evidence, is able to see and accurately formulate an accurate thesis providing insight and analysis of these very complex aerodynamics!
Good job Man! and thank you for taking the time to explain it, believe it or not, our own Engineer, took the time to patiently walk me though this beautiful airplane long ago, and the light bulb came on? and here brother, you've brought forth a thoughted and insightful look at this amazing airframe... I hope everyone will take the time to read his analysis,,,,, its worth stopping and letting him spell it out!
I like to see the J20 'airshow' stunts, like Pugachev, tailslide, wingover, yoyo, post stall maneuver etc. .. things that wow the laymen even if some are not extremely useful in actual A2A
I love seeing those too Bub, but I just don't Pres Xi is gonna show us everything this girl will do just yet, LOL!
Hendrik_2000
Lieutenant General
Is this photo posted before? Wow amazing
I was told that the interaction of the vortices generated by the front tip, the duck planes, the LERX and the wing on the J-20 is complex and required a lot of calculations ...
I was told that the interaction of the vortices generated by the front tip, the duck planes, the LERX and the wing on the J-20 is complex and required a lot of calculations ...
Jura The idiot
General
Yes we went from no real pictures of significance for a long time, to a whole album, with lots and lots of aerodynamic beauties Hendrick, we sir have struck GOLD! I would like to suggest Siege or BY78 that we have a Stickie Thread Photo Album of all these 2018 Zhuhai J-20 pictures, otherwise some good ones will be lost in the shuffle, we have so many......
for the poster who criticized our picture quality, you really ought to be happy now, really happy, these are all beauties, with lots of vapor and "hard pulls" for those sceptics who claimed the J-20 won't turn!
With what we've seen in the last couple hours, I think it's safe to say the PLAAF has a very capable aircraft in it's inventory.
What we do need to keep in mind is that the J-20 force can only be as good as the quality of its operation. Seeing how the air force operates the type, how rigourous personnel selection is and seeing what sort of loadouts the type can properly utilitise at a useful sortie rate.
The devil of aircraft effectiveness lies in the details of its operation. Something to keep in mind while we're gawking at this positively pornographic display of Chinese aerospace technology.
What we do need to keep in mind is that the J-20 force can only be as good as the quality of its operation. Seeing how the air force operates the type, how rigourous personnel selection is and seeing what sort of loadouts the type can properly utilitise at a useful sortie rate.
The devil of aircraft effectiveness lies in the details of its operation. Something to keep in mind while we're gawking at this positively pornographic display of Chinese aerospace technology.
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