that plane design(picture) looks very small (4-6 tons) it could be an attack plane????(replacement of a10???-never knows-) or an trainer??? any info???
Yaaaaa man take it easy
Well if an f15 can reach 9gs at mach 1.5, i dont know what the hell are the supersonic agility concepts in the f22 (please dont start with that loose energy), everybody knows that gs are basically structural limits, lift comes very important (critical) in low speed high gs (very very close turns) at supersonic structural limits are more important that aerodynamics( in maneuvres), because you have an huge kinetical energy, so you can turn very very high gs with an very very high (turn rate-BAD-sorry) radius (btw aoa limits in nowdays fighters are 10ΒΊ at mach 2 and 15ΒΊ at mach 1.5, that aoa is an structural limit), but the planes at supersonic are stabilicied by high pressure shock wave and that increase stress into the airframe, the f22 aerodynamics are optimiced for speed (supercruiser) and structure-controls are optimicied for agility.
Ogami if you think in a different way youre free man…freeeeee!!!!! π we can live with those diferences π , take it easye, yes i was a bit arrogant, but that was because an member start to be arrogant with me an other even when i was educated to deal with him, but in the long way i dont think that it was intentional, so yesterday was yesterday, and today is another day π π π .
tooo much “super” in this post….
This is my lat post in this thread, i dont want other laaaaaaarge discusion with cavernicolars…..
I know,i know, but is unresistible
Hi Ogami, here we go again….
Lift increases with speed from subsonic to transonic BUT DECREASES after that…
Right, but the G limit fall starts at transonic, the reason, the shockwave
Some planes can pull 9G(F-16,F-15) they loose their energy really fast(The F-15 can’t pull 9G past mach 1.5), but for example the SU-27 can’t pull more than 7,5g past mach 1.25.
Man, your confusing aerodynamics limits with structural-real limits
The aerodynamics of the F-22 were done for this: pulling G’s at high machs.
Yes, but the real work is done by the structure and controls
well, well, well, all the calvary had come….. :rolleyes:
comon, comon all the roman empire….like radiohead said π
That low level speed of the foxbat was discarted in the gulf war, there still a lots of myths about that plane, maybe that speed is with missiles or loaded…
I have explained why the horizontal stress is not so important in an structure (force distribution), at low level the air is more dense and induce more (a looot) drag, thats the main reason of low speed of planes at such heigh….
And about that “Gents…you should not argue with our super-expert “Over-G”. I mean, can you remember his expertise on Structural Welding/Riveting last time”, hell, i was the only that explained specifically the behavior of such unions, i was not concentrated in the industrial process, only in the propieties and strengh union, none can denie my effords to make an more scientific tecnical analysis in all the disscusions, not only saing “that is the official report” or “i saw in my expert book” without any analysis…. :rolleyes:
The YF-22A was able to perform maneuvers when it was far beyond the stall angle of attack
Hell, thats what i have been saying in all the threads, the TV only works to mantain high aoa, but not in the turn rate :rolleyes:
could perform bank-to-bank rolls at speeds as low as 80 knots and angles of attack as high as 60 degrees
Why not????, but the TV are nothing to do in (only to sustain high aoa)
The two-dimensional nozzle vectors thrust 20 degrees up and down for improved aircraft agility
Why not?????, but theres not much diference (i have explained that a million of times :rolleyes: )
And dont try to compare me with anyone, i like to do my job alone… π
This is my lat post in this thread, i dont want other laaaaaaarge discusion with cavernicolars….. π
Thanks fjaj, where you find that information????, i dont know if it use an small A bomb like detonating, or use the graser in an deuterium-tritium target(like the inertial confinement fusion experiments -SHIVA,NOVA,OMEGA neutron-litium collition)
are the rusians applying ceramics to their diafragms and turbine blades?
Hmmm, intersting, there are kevlar aplications in turbine fans???404???, no matter if the engine is russian or western..
Why does NOONE understand that RD-33 fuel consumption is slightly BETTER than the F404
I meant about the design, and size, aerospacethec you have some engine diagrams???
The next outing
Comon you also said youre pretty wrong “facts”, hes the next after you :rolleyes:????, dont be arrogant…..
but because the TV nozzles take work out of the horizontal slabs in pitch leaving them do do more for roll control
Comon thats is not a big difference…..
A MiG-25 is subsonic at sea level
Comon another myth…….
horizontal stress is not a big challenge……
Good bye…..
The horizontal stress in an high speed plane is big????? HELLL YESSSS π , youre right about that, but the forces can distributed much, much better arround the airframe, thats not the case of vertical stress, man take it ease you are an wise poster, i think that you dont need those π‘ π‘ , is just an stupid conversation, not an live/death cuestion, look i respect your position. π
And what would be your source for the F/A-22’s speed and G limits? You do realize that the F/A-22 is capable of maneuvering like this due to thrust vectoring, right?
Well SOC for me raptors TV doesnt help much in the maneuvres other missinterpretation is the “ability” to roll with TV, there too close of the gravity center and together, but the raptor have an strong structure, and have poweful control surfaces, btw the shockwawe increase the radar signature :confused: ????, please any could help me????
Diagrams (not pics), please, i think that the best machine is the GE404 (although is not good at heigh, but is beauty) diagrams, design draws, gannt draws,please,please,please,please,please,please,please, π π π
thanks π
By the way what is the eurofighter suprsonic g limit???
Weight has nothing to do with speed in this case !!!
:confused: :confused: :confused: , weight always have to do in any case
drag/thrust gives the speed possible, limited by the weakest structure element.
:confused: :confused: horizontal stress is not a big challenge for the structure…
In peace time a Mirage 2000 is limited to 9 G, but during tests higher values still possible
:confused: :confused: supersonic, at such speeds there are not “instantaneus” limits unless you loss the control…
Well the raptor have an g limit (supersonic) between 5 to 6 gs at 30000 fts (the mig 25 have 5g), thats a very very very goooood value (titanium-compositive structure), but reach 7g SUPERSONIC (.5 gs diference is a big challenge at such speeds), launching missiles, maybe with plastic deformation.
Abut the m1.98, well maybe the raptor could reach that velocity in a dive, but at such maneuvre (split), you loss speed (even if it goes down), one thing is an super speed plane, other is an supercruiser plane.
About that “What is of interest for an operational pilot, if this are hard or soft limits. (Software)”, well it sounds like that “f15a is limited to 7gs only by software” π π π
Obviusly, but i mean about an evolution, the problem are the research cost, maybe the klimov guys dont want to start from the begining and change their industrial process, klimov have made an supercrusier engine??????
welllllllllllllll, im realy tired to discuss that, so goood bye