Falcondude, Carbon nanotubes were discovered in the early 1990s, applications for RAM and RAS only became technically viable over a decade later on the F-35 and could not be retrofitted to the F-22 (the Raptor’s stealth technology is a generation apart):
I strongly suspect more explicit and fundamental utilisation of such materials on the PAK-FA, an opinion reinforced by this official document:
As for the gizmos in the duct, you need to read the NATO scientific research paper on engine-duct RCS and the revelation backscatter is frequency specific (on page 1).Take note of the CNT RAM implications therein. There you’ll also find an English version of a Russian ITAE research paper from the mid-2000s that details advanced computer modelling and algorithms for engine duct/cavity and backscatter calculations and tentative solutions.
I do not believe the PAK-FA will have 2D nozzles. I think they’ll use new, low reflective, Ceramic Matrix Composites for the nozzles (as they’re due to start production of these materials for use on rocket nozzles):
http://www.rt-chemcomposite.ru/novosti/1812/
… in conjunction with ceramic RAM developed for the original AL-41F for use on the MiG 1.42. The engine back-end stealth will probably entail a structure and RAM combination detailed here (Figs 3 & 4):
http://www.findpatent.ru/patent/247/2479819.html
I have no idea how they plan to reduce engine IR signature, but it may have something to do with this:
http://www.findpatent.ru/patent/249/2490496.html
These two patents are co-authored by the general manager of the Type 30 programme.
No offence, but there’s only so many times I can repeat myself on a particular thread. It’s quite astounding you think these prototypes are production representative, do you recall what the X-35 looked like?
You reserve the right to remain sceptical, but as demonstrated on this thread alone, you need to move on from ‘Russkies can’t make s#@%!
On the contrary, I am not dwelling on the “russkies can’t make s@£%t” motto.
I firmly believe they can and that’s why I ask these questions. Look at it a different way. The technology advancements are worldwide. yet all the VLO designs that have been proposed left and right, in the west, for UAVs (Taranis, Neuron, etc) even if non US designs, they follow suit. Even the chinese planes sort of follow suit.
The only design not following suit is the T-50. I am not saying it can, or it can’t , I am asking why is it the way it is !
You have a lot of faith in materials, I do not so much, although I respect your approach .
Some thoughts
Taking the F-22 as the standard to match (or beat), the following can be assumed.
The russians
Should have but couldn’t so they didn’t
Should have, could have but didn’t
Shouldn’t have, so they didn’t
And i’ll explain. It is more than obvious that the plane isn’t VLO by shaping alone. It has got the chin and some edge alignment, but is also fraught with things the americans tried desperately to avoid.
So, could the russians make a high performance plane (which the F-22 clearly is) and VLO shaping ? If they could, why didn’t they? Example: The T-50 ducts may be more efficient in feeding air to the engines, but they are mechanical and hence more complex than the F-22’s. So why go with the more complex route? The F-22 ducts are simpler and hence cheaper in the long run. So why not?
Performance? Well noone can accuse the F-22 of being a sloth. So we know that that design can achieve performance!
Cost ? Any mechanical solution is in the long run more expensive than a non mechanical solution, simply because of maintenance. So it wasn’t because of cost
So why was it?
Having a simpler, more close to the F-22 shape, would mean less trouble developing all the materials Jo Asakura suggests are going to be the main providers of the LO aspect of the plane. Might have been cheaper to go down the F-22 route too than developing all these materials.
Russians must know that EW guided missiles will have a problem with LO targets. To put it bluntly an F-22 can’t shoot down another F-22 with an Aim-120! CANNOT! The missile doesn’t have the ability to be fire and forget with a VLO target!
So why offering even rear aspect increased RCS if you know even a single spike more than the enemy can give him the advantage? Couldn’t or wouldn’t ? why?
Again, the F-22 has an increased weapons capacity of 6 Medium to long range weapons. These can allow for 6 medium to long range kills for a conventional target (ideal case) or 5 chances to force your target to reveal himself through evasive maneuvers so you can plant that last one into him. So you get a 5 opportunities for 1 kill for a VLO opponent.
The T-50 has 4 missiles, following the same logic that is 3 opportunities for 1 kill. Less effective, even if russian missiles are better than the 120s.
Again … why?
these are my thoughts …
After looking at those vids and hi-res photo, it seems to me the build quality is refined. The Skin looks like the same quality like the latest Su-35S and Su-30SM.
I just hope this is not the final skin.
As a though lateraly do you think one of the Pak-fa-6s is for Indian trials. Could be the plane they are getting first to test with. Wasnt it mentioned that India was getting their first bird in 2014, then 2016, 2017.
I read this thread almost every two days, and this is the first time I read the 6-1 and 6-2. Have I missed something?
where are references for these two prototypes?
Definitely not safe to assume anything. After all, the -5 is the last of the initial batch so nobody expected anything of the sort, and the upcoming ones are supposed to be “markedly different” in outward appearance. This is, again, further corrborated by the previously seen models of -6 and above.
previously seen models of 6 and above? I must have missed this. Any links if you can ?
thanks
In danger of being attacked here, it seems the cowlings of the engines are not painted, or covered or anything.
Safe to assume this is going to be the norm then?
THE PVO biggest threat was high flying bombers for which foxbats were designed, if that threat does not exist is the foxbat COMPLETELY redundant ?
A weapon of war is rarely useless but often redundant. A sword can still kill very effectively, but most soldiers today don’t need to carry one. Hence redundant, a battleship is still a formidable weapons platform and a very resilient too, but it is too big, too obvious and not as effective as a carrier. So if you need a big ship, you go for the carrier, not the battleship, hence redundant.
can there be more usage for the 25 and the 31? Yes, sure. Is it worth it? Probably not. The thing with combat jets is that they retain the same allure as classic cars. But they are a heck more expensive to keep using than an old Jag simply because they were pretty good when they came out.
They burn more fuel. They need more parts, they need more maintenance, they need different training perhaps, more ground crew also perhaps. All in all, it costs more.
Take the Greek F-4AUP. For all intends and purposes it is like having a two seater F/A-18 in your inventory. Carries the same weapons and has the same avionics.
But does it cost the same? the answer is NO. It costs more …
Indeed the Skyray did serve for a few years under that designation. The Skynight also managed to hang around until the mid-60s, and it was redesignated the F-10. The variants in use during Vietnam were electronic warfare models known as EF-10Bs I believe.
I feel like a broken record, but if anyone can objectively point out what aircraft was a better alternative than the F-104 for Europe at the time frame it was chosen, then please be my guest…the next closest I can think of is the Mirage III, and even then as we’ve pointed out there are some areas (namely nuclear strike) where the F-104 comes out on top even if its not a “landslide.” The F-104 was the right aircraft for the time, and the accident rate was due primarily to the fact that it was simply so much more of of a handful than its predecessors in some countries, with many not having that “intermediate” step (ala F-100, Super Mystere, etc.) as someone else mentioned. It certainly had its flaws, but it wasn’t an inherently bad aircraft when comparing it to its contemporaries. Not perfect by any stretch, but not nearly as bad as some people want to believe.
It was not a bad aircraft, it was a very demanding aircraft. I believe the Greek airforce attrition rate was also very low for the type, although still higher than that of other types in its service.
Not by a mile, this is why instability was introduced with 4.5 & 5 gen fighters, built for A2A combat, (exempting F-35 which is a bomber)
for the explicit purpose of remaining agile at supersonic speed.
Also take note on the fundamentally important wing loading at alt.EF 311 kg/m^2
Rafale 326 kg/m^2
Gripen 336 kg/m^2
F-15 358 kg/m^2
Su-27 371 kg/m^2
F-22 375 kg/m^2
F-4 phantom 383 kg/m^2
F-16C Block30 430 kg/m^2
F-35 446 kg/m^2
MiG-31 665 kg/m^2Boeing 747 727 kg/m^2
(Lower=better)
Still I would think that at 80km away the time to complete an 80 degree turn is much less than the time to bring it within safe firing range of the enemy.
There were pictures of the 055 around with Medvedev in the foreground, lying in a hangar and it could be seen that the nose aperture is not fitted.
aahhh, yes, I didn’t realise that was -5. thanks
Pics please anybody… :applause:
hmm .. they wrote this particular machine will be releasing weapons … should be interesting then. But the OLS seems like a placeholder.
how do you know it looks like a placeholder? Are there any pics around?
As I said above, perhaps he has significant knowledge somewhere, but it sure isn’t aircraft or defense issues.
Someone around here has the official response issued by Australia’s defense ministry. It makes for amusing reading, but I think the above story adequately captures how their presentation went over. (hint, your audience walking out before you are half way through your spiel is not a good thing.)
When you reach a point where your audience is very well aware of you, and your position, and find listening to you for even 30 minutes to be a waste of time… that is called being discredited.
depends who the audience is made up of.. right ?
You wanna talk to an audience of politicians about corruption amongst them, see how many stay for the full talk then ?
That doesn’t answer my question in any way. Once again:
You have claimed that due to HOBS, WVR fights will practically be suicide, please explain me how would you engage an enemy stealth fighter on BVR, then.
I believe the analogy best suited to Stealth on Stealth BVR engagement is that of a pair of deaf mute and blind men trying to kill each other throwing spears in a field
They haven’t.
Those reports about FGFA being “more composite and stealth and yadada” are garbage.
I can’t help to laugh every time I see “brute strength” being attributed to the bird. Non-american solution= surely must be less intelligent.
No offence but perhaps you should laugh less and read more.
What I meant was that looking at the balance of strengths and weaknesses, the designers will throw more brute force on the strengths rather than fix the weaknesses.
if one of the strengths is “intelligence” they will sure throw more muscle on it. Which they do already as it is advertised as such.
It is funny how peoples misconceptions and biasses don’t allow them to understand properly.
I will say once more, asking questions about the T-50, doesn’t make anyone pro american.
Most controversal information comes from certain circles who have already made a thorough eyeball RCS analysis and published “objective data” about it.
The wiser one simply agree on the fact that we have no data to start with. Any RCS validation attempts are nothing but an exercise in speculation.
Agreed, but still you can’t stop your brain from wondering !!