F-22 Raptor Thread

[LesAdieux]

I suggest you offer facts on the F-22 if you have a case to make of it. If you wish to troll on the ECS, there is another thread for it.

in China, there's a school of researchers who doubt the potency of those "terminated best", such as the F-22, the Sea Wolf, and the DDG1000, they never subscribed to the much hyped Hollywood style invincibility of those weapons.

you don't scrap your very best after so much treasure, toil, and time. the end of the cold war is a convenient excuse, but the rise of China and the coming back of Russia seems failed to resurrect those terminated best.

 

[LesAdieux]

I don't think Hollywood gets any of the credit for the F-22?? but LochMart certainly deserves to be lauded for bringing us this very fine aircraft that continues to exceed expectations. If you are an L/O skeptic, you are entitled to your own views, but China and Russia are scrambling to match the F-22/F-35. I am happy to see the F-22s deployed to Kadena, one of my favorite places, it was fun to watch aircraft coming in to land from across the bay.

No doubt the F-22 is invisible to the PLAAF and PLANAF? so no doubt they aren't to worried about something they can't see, flown by an Air Force that is just out to "keep the peace". Sam Colt's hogleg came to be known as the Peacemaker, still the top gun of cowboys, unless your a Smith and Wesson man?? LOL

what does dirty Harry say??? "go ahead, make my day!"

if you are so confident, then calm down, the show down is not far away, we'll see how F-22/F-35 going to fare.

 

[Brumby]

in China, there's a school of researchers who doubt the potency of those "terminated best", such as the F-22, the Sea Wolf, and the DDG1000, they never subscribed to the much hyped Hollywood style invincibility of those weapons.

you don't scrap your very best after so much treasure, toil, and time. the end of the cold war is a convenient excuse, but the rise of China and the coming back of Russia seems failed to resurrect those terminated best.

I am quite sure in any given topic there are as many variation in opinion as there are individuals who are prepared to offer one. Do you have any facts that you can offer from these researchers?

 

[LesAdieux]

I am quite sure in any given topic there are as many variation in opinion as there are individuals who are prepared to offer one. Do you have any facts that you can offer from these researchers?

sounds like you got lots of "facts", mind to tell us a few?

 

[Brumby]

sounds like you got lots of "facts", mind to tell us a few?

You are the one bringing up these so called "researchers" - not me. So tell us about them and how their views are connected to this thread. Isn't that your intention?

 

[Brumby]

To what I hear it's going to be tested on the ATD-X/X-2 that is going to make it's maiden flight next month.
The mechanism is similar to noise cancellation where they hit the radar with an phased out plasma wave of the same frequency to cancel each other out.

With active cancellation it is mostly hype and loads of practical issues. If I understand plasma stealth correctly, its key utility is in absorption rather than cancellation. In other words, a half phase for cancellation is more demanding in terms of agility and fidelity and that was the key impediment. With plasma stealth the requirement is in variation of density and temperature to match the frequency band to effect absorption, and that the technology I suspect has a greater tolerance to variation. I am sure there are other practical issues. Will be interesting to note such testing on the ATD-X.

 

[SamuraiBlue]

With active cancellation it is mostly hype and loads of practical issues. If I understand plasma stealth correctly, its key utility is in absorption rather than cancellation. In other words, a half phase for cancellation is more demanding in terms of agility and fidelity and that was the key impediment. With plasma stealth the requirement is in variation of density and temperature to match the frequency band to effect absorption, and that the technology I suspect has a greater tolerance to variation. I am sure there are other practical issues. Will be interesting to note such testing on the ATD-X.

OK we may be both wrong but I from what I read the method to be tested on the ATD-X/X2 is cancellation where the plasma actuator will vibrate the cross section at half phase to cancel the radar waves much like how noise cancellation works. I really don't know how fast the system would work but basically I believe it will be in the micro seconds in which frequency jumping would not be that fast.

 

[Brumby]

OK we may be both wrong but I from what I read the method to be tested on the ATD-X/X2 is cancellation where the plasma actuator will vibrate the cross section at half phase to cancel the radar waves much like how noise cancellation works. I really don't know how fast the system would work but basically I believe it will be in the micro seconds in which frequency jumping would not be that fast.

Hmmm....you had me scratching my head on this one. I don't know what to make of it. It sure sounds like active cancellation but with plasma attached to it.

 

[SamuraiBlue]

Hmmm....you had me scratching my head on this one. I don't know what to make of it. It sure sounds like active cancellation but with plasma attached to it.

Believe me I am clueless as much as you are. I really don't understand if just by vibrating the surface will cancel radar waves since it's not propagated by some medium. On the otherhand if by somehow vibrating a metal surface generates electromagnetism which it does based on Fleming's right hand rule then we have active cancellation.
On another note Japan is the forerunner in Plasma discharge technology based on development in plasma display technology.

 

[SamuraiBlue]

On the otherhand if by somehow vibrating a metal surface generates electromagnetism which it does based on Fleming's right hand rule then we have active cancellation.

Come to think of it this is the same principle that is applied into smart skin radar.

Here is a report of the concept that have concluded research in 2010.

Please, Log in or Register to view URLs content!