Chinese Researchers Announce Radar Invisibility Cloak with Illusion Cap

[marshall]

Because China is ahead of USA in this area of science so the US is leveraging Chinese expertise here. The same does not happen the other way around where US advantages in potential military technology is strictly controlled. That is unless of course you believe rumors and other unconfirmed reports from dubious sources that propagate American right-wing media.

We can't honestly be as stupid as to give away tech with something in return...

China's offer to the USA, if they win the proposed high-speed railway between Los Angeles and San Francisco, is full technology transfer for American technology absorption and eventual domestic construction content. What gains are to be had in this arrangement besides goodwill? This goodwill is also a dubious rationale considering most Americans see this offer as mercantilist capitalism to take advantage of American technology weakness in this field. I find this to be a totally one-sided affair.

 

[no_name]

China's offer to the USA, if they win the proposed high-speed railway between Los Angeles and San Francisco, is full technology transfer for American technology absorption and eventual domestic construction content. What gains are to be had in this arrangement besides goodwill? This goodwill is also a dubious rationale considering most Americans see this offer as mercantilist capitalism to take advantage of American technology weakness in this field. I find this to be a totally one-sided affair.

A company has to make name recognition and marketing somewhere. Plus China sells US the tech and business opportunities. Whether their political atmosphere can make use of this and implement widespread HSR service in US remains to be seen.

HSR requires huge investment, something that the states, used to cars and air travel, may not have the political will to implement, especially with the current economic picture.

 

[CardSharp]

China's offer to the USA, if they win the proposed high-speed railway between Los Angeles and San Francisco, is full technology transfer for American technology absorption and eventual domestic construction content. What gains are to be had in this arrangement besides goodwill? This goodwill is also a dubious rationale considering most Americans see this offer as mercantilist capitalism to take advantage of American technology weakness in this field. I find this to be a totally one-sided affair.

If China can lend the US trillions of dollars and be accused of building a financial weapon of mass destruction, the good will question becomes sort of irrelevant.

 

[marshall]

Leading edge stealth tech still hasn't been able to mitigate vulnerabilities to L-Band radar. The Russians are even claiming that they have an L-Band radar that can detect F-22s from over 30kms out with leading wing electronically scanned T/R modules. Highly doubtful, but not impossible either considering this has been proven if there is enough power to the L-Band radar.

For it work on constructive/destructive interference basis, Bragg's law (relationship between angle, slit width, and interference) states that the constructive/destructive slit width would need to be in the cm-meter range.

Radar is in the cm-m wavelength range.



Meta-materials are as far I know on the nanoscale.

 

[CardSharp]

A company has to make name recognition and marketing somewhere. Plus China sells US the tech and business opportunities. Whether their political atmosphere can make use of this and implement widespread HSR service in US remains to be seen.

HSR requires huge investment, something that the states, used to cars and air travel, may not have the political will to implement, especially with the current economic picture.

HSR not as practical as it would be in China. The population density and distribution favours cars because that's the cities built themselves. There's also the problem of populations center on two coasts across the entire country.

 

[CardSharp]

Leading edge stealth tech still hasn't been able to mitigate vulnerabilities to L-Band radar. The Russians are even claiming that they have an L-Band radar that can detect F-22s from over 30kms out with leading wing electronically scanned T/R modules. Highly doubtful, but not impossible either considering this has been proven if there is enough power to the L-Band radar.

That's why I think it might only be for spot applications.


A spot application of plasma stealth (different concept) was tried on the Lockheed A-12's inlet

During Project OXCART, the operation of the Lockheed A-12 reconnaissance aircraft, the CIA funded an attempt to reduce the RCS of the A-12's inlets. Known as Project KEMPSTER, this used an electron beam generator to create a cloud of ionization in front of each inlet. The system was flight tested but was never deployed on operational A-12s or SR-71s.[3]

Plasma stealth - Wikipedia, the free encyclopedia

 

[marshall]

If China can lend the US trillions of dollars and be accused of building a financial weapon of mass destruction, the good will question becomes sort of irrelevant.

True, I got nothing on this one.

 

[no_name]

HSR not as practical as it would be in China. The population density and distribution favours cars because that's the cities built themselves. There's also the problem of populations center on two coasts across the entire country.

Which is why the implication is not as severe as some thinks if we sell them HSR technology and services. It may actually delay things even more. But the business opportunity is there, the marketing opportunity is there, the opportunity for some people to change perception of china as only manufacturer of cheap goods is there.

 

[anon45]

Looks like similar experiments to the 'invisibility cloaks' in the UK and US.

 

[Andross]

Sounds very complicated

 

[CardSharp]

Looks like similar experiments to the 'invisibility cloaks' in the UK and US.

That's for the visual spectrum and it only fools human eye. This hopefully can fool radar systems on fighters, AWACs etc.

 

[ao333]

Most research projects come and go. Only the successful ones are remembered.

 

[Andross]

A glass-like material based on technology found in an ancient
Sanskrit text that could ultimately be used in a stealth bomber (the
material cannot be detected by radar) has been developed by a
research scholar of Benaras Hindu University.

Prof M A Lakshmithathachar, Director of the Academy of Sanskrit
Research in Melkote, near Mandya, told Deccan Herald that tests
conducted with the material showed radars could not detect it. "The
unique material cannot be traced by radar and so a plane coated with
it cannot be detected using radar," he said.


Is India working on this also?

 

[StingRoy]

Is India working on this also?

Do we need to? (meaning the cloak) I don't think so.. there are number of other priorities that we should focus on.

 

[Andross]

Do we need to? (meaning the cloak) I don't think so.. there are number of other priorities that we should focus on.

Possible to use it for 6th gen fighters in the future?