That's not how it works though. Computers get frequent upgrades. So even an old radar, still a PESA, can detect stealth if it has the right software and computational power.
Obviously that's the theory of upgrade but just like don't rapidly upgrade our phone, laptop, washing machine, TV, etc when every year there are newer better models, similarly military systems also cannot be rapidly upgraded until the 1st iteration of the PROJECT is complete otherwise there will be significant surge in cost affecting country's economy.
You are just assuming without any basis.
I'm common citizen, not DoD person. This is casual unofficial hobby site for enthusiasts who's basis are the public media sources. But atleast i'm technically qualified & experienced.
What would be your basis? Are you DoD guy?
Every single bit of hardware and avionics of the Su-57 has been designed to not just match the F-22, but significantly exceed it. It is more or less similar in stealth. And no, what you hear in the media is mostly Western propaganda. It has greater range and performance, a higher weapons load, the electronics are a generation ahead. It even has technologies the F-22 lacks entirely. With the exception of stealth, the F-22 is not a match to the Su-57, which is something even the USAF has admitted in their air force document.
I respect your belief but that's not what i believe, so let's not go in circles of dogfight of words. I did say that Su-57 is dangerous in close combat & it has some cool things like DIRCM, LEVCONS, 3D-TVC, etc which is yet to be seen on western jets but at the moment i believe that F-22 is better in BVR, that's all. So everything has plus & minus points, strengths & weaknesses, simple.
There is no disparity. It's just the way information has been analysed. The media simply ended up comparing the F-22's achieved stealth with the F-35's minimum expected stealth. When the F-35 completed development, they got a jet that was more stealthy than the F-22. The F-22 went through the same process, where the expected (0.05m2) and achieved (<0.001m2) measurements were different. You can say that even the Russians do not yet have a clear idea about how stealthy the Su-57 really is.
General Hostage is not "a" source, he is "the" source. There are no better sources because he was the commander of Air Combat Command, it's their most important air command. A ranking officer with the highest clearance.
Frankly it doesn't bother me too much about RCS of F-22 Vs F-35 bcoz it is in the order of 0.00XX sqm which rest of the world is yet to achieve.
But they measure RCS from every angle in RCS range as well as Anechoic chambers, so both Russia & USA know exactly the RCS figures of their jets. How honest they are in public is obviously speculative.
People like Mr. Hostage are in perfect position to take hostage of public's mind & opinions.
There's nothing spectacular about detecting the IR returns of BMs. If a mobile phone camera could do it in the visual spectrum, so can a very large IRST in the IR spectrum from an even greater distance. Hell, I can see stars from lightyears away. I can also see the sun from 150 million Kms away. IR detectors are used in space and BM launches all the time, it's very old tech.
This is just one of those "amazing F-35 facts for kids" moment, where they want to show off some capability by throwing your focus on something else, but has a different message for experts. The point of showing this off wasn't to demonstrate the capability of the IRST, because it's pretty generic, most fighter IRSTs tend to discard it as clutter, it was to demonstrate the F-35's capability to act as a sensor for the BMD net.
Later they indirectly revealed that the F-35 is integrated with the Patriot, which can provide fire control to the SAM to knock down BMs. So when a TBM is launched against a friendly position the F-35 is defending, it can detect the launch quicker than the Patriot battery and use a SAM to bring it down.
So nobody is stopping Russians to post a similar video demonstrating the OLS-50m which is larger than AN/AAQ-37. The public will believe what will be shown, simple. I'm an engineer, i'm on side of technology, not on side of Russia or USA. Technical people will tell u plus & minus points while non-tech people seem to take sides sentimentally just bcoz a country supplied arms since decades, LOL!
We are able to see the stars & sun only bcoz they release enough photonic energy to travel in vaccum without particle scattering. Inside the atmosphere it is a different story.
And there is something called aperture size, focal length in analog optics.
In digital optics, the focal plane sensor material matters like PbS, InSb, etc.
Whether the sensor is for LWIR, MWIR, SWIR, that matters as there will be different image created for same object.
The sensor is IR or UV based that matters.
The altitude of source & target also matter.
then the quantization rate matters, the software capability matters.
All these things decide the cost of the system. Just google the price of best DSLR cams, movie cams, telecasting cams. See videos how lenses & cameras are made.
Who doesn't wanna show-off? The Russians don't show-off? You don't see their documentaries it seems. The F-35's BMD video showed digital image processing in engineering mode & u said it right "most fighter IRSTs tend to discard it as clutter" bcoz their software engineers are more ignorant in programming. If our classmate went to IIT & we lagged behind whose fault is it? In my college 3rd year i made a project using DIP so i know what i'm saying.
If the F-35 can help in any way to share a target data, what's wrong in it? Is it a problem or a solution? Do you even know how software solutions work?
Military R&D is funded by govt revenues, not by private entrepreneurship. It's like how Saudi govt is very rich, but its people are not exactly very rich compared to the wealth being hoarded by the govt. So the wealth of the people is largely irrelevant when the govt earnings are largely coming from outside the country, hence the Western need to isolate Russia.
Russia has a very rich govt populated by average people. Their procurement budget is half as big as the US procurement budget, and it's double India's procurement budget, which is why they modernise twice as fast as we do. There's more, India spent $200M on the development of Arjun since the 80s, including inflation. But we paid Russia $1.2B for T-90's ToT. That money was more than enough to pay off Russia's entire armour R&D budget since the end of the Cold War and they still made a profit.
Money doesn't work in exactly the same way in Russia as it does in the West. The world is subsidising Russian R&D through their oil and gas business along with defence exports.
Let me throw some examples your way. India plans to build 100+ FRCV a year, whereas Russia plans to build 500 Armatas a year. India bought 5 regiments of the S-400, the Russians are already operating 28 regiments and are still buying more, along with S-350 and S-500 in large numbers too. We bought over 350 fighter jets in 20 years, the Russians bought 400+ in 7 years, and are still buying more. Do you really think India has more money than Russia?
A Su-30MKI costs 3.5B rupees in India, but it costs 1.8B rubles in Russia. So when 1 rupee = 1 ruble, then the cost of a Flanker in Russia is half that of India's. So the $ value of the Su-30SM at today's exchange rate is $18M. Similarly, the Su-57 costs about 2.5B rubles, that's $25M. A Yasen class costs 50B rubles or $500M. A T-90 costs 100M rubles, that's $1M. All unit costs. That's how "rich" the Russian govt is. Their currency is trash, but it has value within Russia.
The theory behind it is explained here.
You have wonderful data on cost & procurements. Rich people are everywhere, we all have read about Russian Czars.
But Russia, a frozen popsicle country is having vast experience being weapon mongers since the WW era & India being a tropical country has vast experience in getting used, import dependency, corrupt govt. officials, citizens challenging eachother, inter-state racism, etc
India has lots of potential, global CEOs but all running after dollars, pounds, euros
India has lots of money but in secret accounts of corrupt people.
We Indians after 7 decades of independence talk of democracy & can't overthrow a monarch family
Israel, another tiny heat-scortched desert country, surrounded by enemies has survived well.
If necessary, they can spend more money than the US on defence every year (minus the navy) as long as their oil exports continue, which likely will.
Let's see in near future. Ultimately our business with them should not hamper that's what matters. We are doing business now with both USA & Russia so no point in taking their sides. All products have plus & minus which u r not accepting. By integrating multi-national H/w & S/w we are already on side of technology, not nations.
So you're comparing 120 deg heat from airframe friction to 3000 deg heat from a BM's solid booster?
Which is more easily detected from 1000Km away, a gas stove lighting up or a nuclear explosion?
No, technically i'm talking about how many Lumens of photonic energy is reaching the sensor from what distance, what type of sensor it is & whether the combo of H/w & S/w intelligently tracks it, classifies it & then decides to ignore it or straight away irgones it as clutter.
Bigger source will be detected at larger distance, smaller source will be detected at smaller distance.
So if BM's plume is detected from 1300Km in 10x digital zoom then a jet's plume could be detected in range of say 300-500Km easily, but it depends on so many technical & environmental factors i mentioned. And the Russians are yet to share their demo.
BTW if gas stove sized thruster lit up in vaccum of space then it would be equally easily picked up as any other big source as long as the photonic energy reaches the sensor, same way as we can see a star light years away.