It remind me the old F-16 vs MiG-29 flying test.
With F-16 block 50+ against vanilla WP MiG-29A usually…
And obviously in a sustained turn dogfight like they would have just late seventies IR missiles with neither all aspect seeker nor high boresight capabilities…A more fitting comparison woud be: F-14 & Mig-31 vs F-15, F-16 and Mirage 2000 vs Mig-29A and F/A-18 vs Mig-29C to M, basic Su-27 & Su-30, F-35, J-31 vs all eurocanards, canard and early thrust vectoring Sukhois, j -20 vs Mig-35, Su-35, PAK-FA. F-22 is an one of a kind bird on this regard so it wouldn’t fit easily in this kind of a incremental scale.
F-22 and F-15 have the same sustained turn rate value ( just saying) , 4.5 gen probably not as maneuverable as we like to believe
Im quite sure with all his contacts in the military Yeager is kept abreast of developments. Consider the fact that these military contacts will tell Yeager ..
Given the age of him, most of his friends in the military already retired or death. And to be honest, there is absolutely no reason for a military contractors to share classified information with an old retired test pilot ( if it is the kind of information that can get them fired or face prison time) , like what the heck would they gain by doing that? asking for advice? Yeager is just a test pilot
the truth that they wont tell the general public, for fear of reprisals from the Pentagon for not toeing the political line..
Well, all the new that we got about the problems of F-22 and F-35 came from the USAF and Pentagon, so if the 2 aircraft are a waste of money and they dont want the public to know the truth, then why the heck would they bothered report bad news? what the point ?
Russian expert talking about 5 generation fighter
https://youtu.be/ScM_rN9a-js
I find it rather interesting because in this kind of thread sometimes we get to read very interesting and informative post from knowledgeable people like Andraxxus
But we will also get nonsense post from member like JSR
MiG-29 vs Su-27
dog fight – 1.18, ranged combat – 0.92Rafale vs Su-27
dog fight – 1.24, ranged combat – 1.3Thus Rafale (first flight 1986) = 1.2 MiG-29 (first flight 1977)
http://paralay.com/paralay_tab.xls line 194 – 221
Is that excel tab just a bunch of random number merged together?
Without any details analysis to explain why , this kind of thread is a waste of bandwidth
The NG model look alot better
So i followed your suggestion and was able to convert GIF to BPG using this https://www.reaconverter.com/convert/gif_to_bpg.html software , the files size reduced significantly from 19 MB to just over 500 KB, too bad though WordPress doesnt recognize .BPG files type and neither is most software in my laptop, I already tried to convert GiF to GiFv but WordPress doesnt allow me to upload video. Anyways i optimized the GIF abit , reduce their colour and resolution a tiny bit so now the front page is only half the size ( 10.1 MB now as opposed to 19.5 MB before so hopefully the loading time would be more bearable ( unless you are from Australia , in which case the loading time would be enomous for some weird reason that i havent been able to figure out why )
According to https://www.dotcom-tools.com/website-speed-test.aspx , people that are not from China will load the blog in seconds
So i just tweak the display of the website abit , changed some pictures to gif so that it look better , but iam abit worried that it may take too long to load , so can someone try and tell me if the front pages load speed is acceptable ? https://basicsaboutaerodynamicsandavionics.wordpress.com/
Look good to me
It such a shame that this website isn’t nearly as popular as these BS blog from Picard and the like.
There are a few reasons for that
1- This website is new, Picard blog, APA has been created for several years already, given enough time they will be equally popular
2-While this website give a lot of knowledge, it doesn’t have any “this vs that” sort of comparison, you know that what internet fan boy interested in. Even if the comparison is very dumb.
3- These posts are too long because they need to covered such a big topic. Most people are very lazy to read, they like something simple and being spoon feed to them
Regarding PAK FA program, there were never any hint or info from any source that the plane won’t be able to match or exceed the Su 27 flight performance. On the contrary and the Sergey Bogdan is very modest man that actually puts his money where his mouth is.
The same thing can`t be said for the F 35 program for a fact.
Very subjective opinion , one can also claim that F-35 program have alot more explosuare compared to PAK-FA program because more countries are involved , moreover F-35 has been going on for much longer than PAK-FA program ( F-35 reached IOC now while PAK-FA still very early on testing phase ) so obviously it would show more problems .
For example, at MAKS 2015 PAK FA had on average more than 33% faster roll/yaw rates in a flat spin compared to Su 35 and it recoverd much faster with less height loss. I used flat spin as an example becuase both planes did it at similar conditions and on the same day.
PAK FA is simply much more sophisticated aerodynamically. Take this video for example:
https://www.youtube.com/watch?v=MjQG1s3Isgg
At 7:22 mark you can see how fast and efficient the plane can reattach the airflow over the wings and upper surface of the body in the form of symmetric vortex and simply “skids” away.
In the same video at 8:47 mark you can see PAK FA doing high AoA loop without loss of lift. There were no vortex burst and if the Su 35 tried the same thing it would stall its wings. PAK FA stall limit is at much higher AoA which means that the plane will stall later and regain lift sooner. Levcons (among other things) play major role in this case and provide better lift to drag ratio (in all flight regimes) and controlability at post stall region (even without TVC) unlike more simple LERX on Su 35S
Do you have any video or source that compare the 2 plane flying side by side ? i cant find any source that actually show PAK-FA roll 33% faster ,and your comparision just sound very subjective without any number to back up
And above all that you should keep in mind that the PAK FA flight anvelope is severely restricted compared to Su 35S that has no such restrictions.
F-35 envelop is restricted too , as with all fighter in testing phase
we can see vortex formation which undoubtly indicates that the plane is actually turning.
that not always true , you would see the vortex as long as the plane fly at a positive AoA , doesnt neccesary mean it is turning
As far as I have understand, the Dutch F 35 is a 7G bird and it showed absolutely nothing even remotely close to PAK FA performance, so I don’t see your point?
F-35 in Dutch airshow did high speed turn mostly , while PAK-FA ins MASK airshow did post stall maneuver mostly , 2 very different kind of performance.Moreover , while G restriction limit servely high speed turn performer , i dont think it really affect post stall maneuver at all
Actually, few times I have posted the video interview where the chief test pilot Sergey Bogdan claims that the PAK FA is superior to Su-35 in all cardinal performance parameters (that it has better thrust to weight ratio and lower wing loading, better acceleration, turn performance etc.)
When asked to compare the plane to Su-27, he said that after absence of one year flying that particular plane, it felt like a truck compared to PAK FA and Su-35 that feel more like a race car in comparison.
Since you are not new here , you already know that everyone assumed that all positive statements from pilots are PR nonsense ( unless it is about their favorite fighters ofcourse, then it would be regarded as god words )
When we look at the high AoA perfomance, we can see that PAK FA has even faster roll/yaw rates than Su-35 (F-22 is not even in the same class), but what I find very interesting is the sinking rate/distance and energy recovery. PAK FA can regain the lift much faster/sooner than Su-35, and the amount of lift it can generate in relation to its weight allows the plane to spend less time/distance sinking and thus regaining the energy much faster
These statements are quite vague to be honest , do you have any number and source to back it up ? , you are not neccesary wrong , PAK-FA may be better but by how much exactly ?
The way you measured the time is not the most reliable and accurate. If you want to more accurately measure the 180 degree turn you should start at about 2:46 mark because then the plane is at about 90 degrees in relation to camera position and exposing its full lenght. You should stop the time when the plane reaches 90 degrees in relation to camera position exposing its full lenght but pointing in oposite direction. That should give us some nine to 10 seconds trnaslationg to 18 to 20 dgrees per second.
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I think you screen shot it a bit too late ? , the aircraft nose position doesnt seem to change between 2:53 and 2:56 ? it look like the aircraft finished the turn in 7-8 sec in my opinion
PAK FA air show performance is more than impressive even if we exclude the fact that the plane showed only about 50% of its full potential and was limited to about 5+ Gs according to official statement.
There is no other western plane in the world capable of doing such complex high AoA manuvers even in this stage of flight testing.
As far as i know F-35 also have G restriction at the moment , some where between 5G and 7G depending on source
^ Some one gonna come and claim snapdragon 800 is faster than core i5 because it have higher Ghz and more core:highly_amused: just like they claim one plane is more agile than other because of lower wingloading
Still, the record stands,
The problem with this record is the information isn’t very clear and quite confusing, it doesn’t state whether the speed is the maximum speed that Su-27 reached at one point while still cover 1000 km, or that the average speed of Su-27 all over 1000 km circle
and there is one with a 1TM of payload, is clear this record has practical implications.
The su-27 being used is a modified one without radar, IRST, jamming system so it is quite a bit lighter than the average Su-27, iam not saying that the average sukhoi doesn’t have good range, but the one perform the record will likely have better kinematics performance than your war capable su-27
Not to mention 5th gen vortices that noone will be able to see before being shot except the 8 F15 that went into dogfight… Oh wait.
Late nite joke, sry 😉
could be a dogfight exercrise , F-22 also did alot of dogfight with t-38 in exercrise