US F/A-XX and F-X 6th Gen Aircraft News Thread

[SlothmanAllen]

I am going to have to doubt this claim. Intel not only produces it's own chips but designs them as well. They are a massive company with huge design and production capacity. While they have struggled to keep up with TSMC in terms of cutting edge manufacturing, that doesn't mean they are no longer relevant.

As an aside. I feel like a lot of users don't understand how dominant US based companies are in the semiconductor area. For example, US based companies account for about 48% of global semiconductor sales. On top of that, US semiconductor companies spend more on R&D as a percentage of revenue than companies from other nations. So its not like the US is some 3rd rate country when it comes to semiconductors. The IRA\Chips Act is all about getting manufacturing back state side, or at least making the US less reliant on imports for semiconductor components.

To add to this post, American companies spent ~$44 billion on semiconductor R&D in 2021 which was roughly 55% of the global total (Intel alone contributed some ~$19 billion).

 

[TerraN_EmpirE]

Your claim that Pyotr Ufimtsev's formulas are based on Maxwell's equations is just plain bullshit. Einstein also derived E=mc2 from the Lorentz equations. So you are basically telling me his equation is irrelevant, and Einstein didn't invent anything either. If deriving the RCS equations was that easy, why didn't the US come up with the equations on their own then? Or anyone else for that matter.

Yes it was. But Einstein was never claimed to have then made the Atomic bomb. My point is that having the theory doesn’t make it practical. The Soviets had the possibility of making a lot of things but they couldn’t take it from theory to practice. Yet again and again they never followed up.

And you don't understand the difference the equations make really. It is like the difference between computing an integral with numeric or with analytic methods. It is way, way, less compute intensive to use Ufimtsev's formulas to compute the RCS. And if you approximate the curved surfaces with high resolution flat surfaces it isn't particularly fast either. It is god awful slow as well. Which is why the F-117 was made out of huge faceted surfaces.

F117 was faceted as that was the limitations of computers of the time. Farther unlike what you seem to now be spinning it was F117 that the claim of Ufimtsev’s formula is attached to not F22 or B2 or whatever.

Russian air power strategy was never based on deep penetration of energy airspace either. Just like I said in other threads, the Soviets tried that against the Germans in WW2, when they bombed Berlin. They figured out the losses in aircraft just weren't worth it. Soviet bombers started being used to fire cruise missiles really early after WW2 as well because this. Just look at the Tu-160. It doesn't even have the capability to drop dumb bombs at all. It comes with internal rotary bays to launch missiles. You could in theory remove the rotary bays and put a regular bomb bay in it. But I never heard of it being done.

Tu160 was developed to drop nuclear bombs in American cities which is deep penetration bombing.

Of course if the other side's fighters have stealth then either you put stealth on your fighters or you will be at a disadvantage so that's why they did it. But the fighters and fighter bombers are meant to operate close to the line of the front. Not go deep into the middle of enemy lines.

WOW. No wonder the Russians are having a hard time in Ukraine. Because that’s exactly what fighter and air power is supposed to Do!

 

[sunnymaxi]

I am going to have to doubt this claim. Intel not only produces it's own chips but designs them as well. They are a massive company with huge design and production capacity. While they have struggled to keep up with TSMC in terms of cutting edge manufacturing, that doesn't mean they are no longer relevant.

its a totally different topic. but let me clear your doubts.

SMIC 7nm is actually better than Intel's 7nm when it comes to transistor density.. that too without using advance lithography. ever heard of Hisilicon? one of best chip design company in the world.

so when it comes to semiconductor fabrication. both USA/China more or less on same level.

USA desperately looking for TSMC/Samsung for building 5nm/3nm fab. coz Intel cannot handle this kind of nanometer chips.

As an aside. I feel like a lot of users don't understand how dominant US based companies are in the semiconductor area. For example, US based companies account for about 48% of global semiconductor sales. On top of that, US semiconductor companies spend more on R&D as a percentage of revenue than companies from other nations. So its not like the US is some 3rd rate country when it comes to semiconductors. The IRA\Chips Act is all about getting manufacturing back state side, or at least making the US less reliant on imports for semiconductor components.

agreed with you.. USA is a dominant player in semiconductor supply chain. especially in Non-Lithography tools and hold approx. 50 percent market share. but China also have complete set of semiconductor tools right now.

you know what, American semi companies completely dominated Chinese market for so long. but things have changing rapidly. within few years, Chinese companies will wipe out all USA firms from mainland. and don't forget China is the world largest semiconductor market by a country mile.

 

[anzha]

Let's get back on topic. Historical claims of who invented what are pretty irrelevant to the American 6th gen fighters.

It should be noted there was a modified Boeing airliner used to develop and test the F-22 avionics. If something was done already for the USAF NGAD, that may count as a demonstrator.

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I do not believe that to be the case as money thrown around has been more than enough to support the construction of demonstrators like the Bird of Prey or such. There's no visual proof and only a suggestive, but ambiguous money trail.

 

[Atomicfrog]

Let's get back on topic. Historical claims of who invented what are pretty irrelevant to the American 6th gen fighters.

It should be noted there was a modified Boeing airliner used to develop and test the F-22 avionics. If something was done already for the USAF NGAD, that may count as a demonstrator.

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I do not believe that to be the case as money thrown around has been more than enough to support the construction of demonstrators like the Bird of Prey or such. There's no visual proof and only a suggestive, but ambiguous money trail.

Some claim exist that they have a full size demonstrator already... some even a couple of years old.

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[gelgoog]

Tu-160 was developed to drop nuclear bombs in American cities which is deep penetration bombing.

The Tu-160 was supposed to launch air launched cruise missiles like the Kh-55. Now it would be launching the Kh-101.
It was supposed to fly at high altitude, get into position, fire the cruise missiles, and then come back.
Exactly the same thing you see them doing in Ukraine right now.

This is totally unlike the US which decided they had to make the B-1 a low altitude penetration bomber to get to the targets. Or make the B-2 a high altitude stealthy penetration bomber to get right over the targets.

As for NGAD I expect it to be a tailless aircraft with GaN radar all over the surface of the aircraft. Should have radar on the nose, wings, and maybe tail. Should be able to communicate with satellites and drones. And should have enough range to do missions over the Pacific. So I expect a huge airframe.

 

[AndrewS]

its a totally different topic. but let me clear your doubts.

SMIC 7nm is actually better than Intel's 7nm when it comes to transistor density.. that too without using advance lithography. ever heard of Hisilicon? one of best chip design company in the world.

so when it comes to semiconductor fabrication. both USA/China more or less on same level.

USA desperately looking for TSMC/Samsung for building 5nm/3nm fab. coz Intel cannot handle this kind of nanometer chips.


agreed with you.. USA is a dominant player in semiconductor supply chain. especially in Non-Lithography tools and hold approx. 50 percent market share. but China also have complete set of semiconductor tools right now.

you know what, American semi companies completely dominated Chinese market for so long. but things have changing rapidly. within few years, Chinese companies will wipe out all USA firms from mainland. and don't forget China is the world largest semiconductor market by a country mile.

@SlothmanAllen

There was a podcast which included Dylan Patel recently, discussing the Huawei (Hisilicon) chip.

Basically the conclusion was that if SMIC had access to an advanced EUV lithography machine (which they had already paid for), then that Huawei chip would likely have been equal to the best chips anywhere

 

[AndrewS]

The Tu-160 was supposed to launch air launched cruise missiles like the Kh-55. Now it would be launching the Kh-101.
It was supposed to fly at high altitude, get into position, fire the cruise missiles, and then come back.
Exactly the same thing you see them doing in Ukraine right now.

This is totally unlike the US which decided they had to make the B-1 a low altitude penetration bomber to get to the targets. Or make the B-2 a high altitude stealthy penetration bomber to get right over the targets.

As for NGAD I expect it to be a tailless aircraft with GaN radar all over the surface of the aircraft. Should have radar on the nose, wings, and maybe tail. Should be able to communicate with satellites and drones. And should have enough range to do missions over the Pacific. So I expect a huge airframe.

I think NGAD would have a limited number of GaN radars (maybe just 1) and rely on networking instead. And sizewise, the Air Force NGAD version is supposedly in the F-22 size class, but the adaptive cycle engines give it very long range.

 

[kentchang]

I think NGAD would have a limited number of GaN radars (maybe just 1) and rely on networking instead. And sizewise, the Air Force NGAD version is supposedly in the F-22 size class, but the adaptive cycle engines give it very long range.

It is logical for NGAD to have similar range as B-21. Their procurement numbers should be similar too.

 

[AndrewS]

It is logical for NGAD to have similar range as B-21. Their procurement numbers should be similar too.

I think the size difference between an [Air Force NGAD] versus [B-21] is just too great for them to have a similar range