The flap in the front that you can barely see.
J-20... The New Generation Fighter II
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The flap in the front that you can barely see.
airsuperiority
Captain
for disrupting the airflow, creating drag, and slowing down the plane and airspeed
You are obviously way my qualified than me
Still, I'm wondering what exactly you meant when you referred to surface disruptions that would have trouble with high band radars. I suspect this has a lot to do with the modeling you've done though.
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MwRYum
Major
And you have been 4 months outdated on this one...I posted that the day after the maiden flight...
LOL...I only came across it now
The caption actually is kind of misdirected, since I think it's not the USAF which uses the "nothing comes close" slogan but the Eurofighter?
MwRYum
Major
LOL...I only came across it now
The caption actually is kind of misdirected, since I think it's not the USAF which uses the "nothing comes close" slogan but the Eurofighter?
It is. Project 817 / "J-20" is what gives China, for the first time in aviation history, have an ongoing project with working sample that is in the front tier of the league. On the board you only got F-35 and PAK-FA, everyone else are at the furthest with just wind tunnel model.
It's close, but no cigar... yet.
Spartan95
Junior Member
The discussion about RCS reminded me of some of the stealth theory that I came across during my undergrad days more than a decade ago.
1. The biggest non-stealth feature on an aircraft is the cockpit. Glass is transparent to radar, which makes the interior of the cockpit a huge radar reflector. For the B-2, the assessment is that the interior of the cockpit is designed to attenuate incoming radar waves so there is hardly any returns. Not a friendly environment for the pilot really. Hence, for fighters, if you have a radar looking downwards, you should be able to detect a stealth fighter since there is currently no known way to make a cockpit stealthy.
2. Stealth features are usually designed against specific threat radars. Thus, the so-called all-aspect stealth is "all-aspect" for certain threat frequencies. It is not stealthy against all frequencies. What this means is that stealth fighters are designed to be stealthy against Air Defense radars as well as radars carried by other aircraft (fighters, AWACs).
3. "Gaps" does not necessarily increase RCS. There is a gap between the air intakes on the F-22 and its body. That does not necessarily compromise its RCS since the radar wave that goes into the gap may never come out again. This is similar to the use of all the cone shape stuff in radar chambers.
Stealthy technology is still being refined as technology advances. 1 of the newer innovations in stealth technology is known as "Continuous Curvature Stealth". You won't find too much of this on the internet. Suffice to say that straight lines are no longer necessary for a stealthy design (reference the curved LERX on the J-20).
1. The biggest non-stealth feature on an aircraft is the cockpit. Glass is transparent to radar, which makes the interior of the cockpit a huge radar reflector. For the B-2, the assessment is that the interior of the cockpit is designed to attenuate incoming radar waves so there is hardly any returns. Not a friendly environment for the pilot really. Hence, for fighters, if you have a radar looking downwards, you should be able to detect a stealth fighter since there is currently no known way to make a cockpit stealthy.
2. Stealth features are usually designed against specific threat radars. Thus, the so-called all-aspect stealth is "all-aspect" for certain threat frequencies. It is not stealthy against all frequencies. What this means is that stealth fighters are designed to be stealthy against Air Defense radars as well as radars carried by other aircraft (fighters, AWACs).
3. "Gaps" does not necessarily increase RCS. There is a gap between the air intakes on the F-22 and its body. That does not necessarily compromise its RCS since the radar wave that goes into the gap may never come out again. This is similar to the use of all the cone shape stuff in radar chambers.
Stealthy technology is still being refined as technology advances. 1 of the newer innovations in stealth technology is known as "Continuous Curvature Stealth". You won't find too much of this on the internet. Suffice to say that straight lines are no longer necessary for a stealthy design (reference the curved LERX on the J-20).
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