this post was submitted on 28 Nov 2023

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204

It's only taken it's first flight and look at what Winnie the Xi's propaganda machine is already producing. (sh.itjust.works)

submitted 11 months ago by CDRMITTENS@sh.itjust.works to c/noncredibledefense@sh.itjust.works

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[–] Rednax@lemmy.world 61 points 11 months ago (4 children)

It doesn't even make sense. Hypersonic missiles are good at being hard to take down themselves. But you don't need that to take down an aircraft. You need super sensitive radar systems, since the claim is that these aircraft reflect about as much energy as a bumblebee would.

[–] Anticorp@lemmy.world 25 points 11 months ago (2 children)

these aircraft reflect about as much energy as a bumblebee would.

That is truly amazing.

[–] Rednax@lemmy.world 21 points 11 months ago (3 children)

Do note that the this claim comes from the same people who don't hand out any actual specs and always fly with an additional reflector. The latter makes it easy for radars to see them again. This is helpful in allied airspace, but it also makes it impossible to verify the claim.

Also note that modern radars are sensitive to how fast an object approaches (or leaves) the radar. Bumblebees don't break the soundbarrier usually, so it is possible to see these planes, but you do have to tweak your radar for it. (Hence why the US doesn't give specs.)

[–] BastingChemina@slrpnk.net 6 points 11 months ago

So they just need to build an aircraft that moves at the same speed and height as a bumblebee. Bam ! Undetectable killing machine.

[–] Socsa@sh.itjust.works 5 points 11 months ago

You'd be surprised the velocity you get from the return on a bird's flapping wing. Also the Doppler ambiguity smears with SNR, so you'll see a bird as something moving between 30 and 300mph at the edge of sensitivity.

[–] Peppycito@sh.itjust.works 4 points 11 months ago (2 children)

This how we get echolocating missiles.

[–] Rednax@lemmy.world 9 points 11 months ago (1 children)

Radar is echolocation with EM waves (low frequency light) instead of sound waves. And there are already plenty of radar guided missiles.

[–] Peppycito@sh.itjust.works 3 points 11 months ago (1 children)

I meant to put ears on the missile. I'm sure the plane is still plenty loud.

[–] Rednax@lemmy.world 3 points 11 months ago (1 children)

That is called passive sonar. I suspect that it is kinda hard to hear from the missile. Anything behind you is certainly not hearable, since the missile goes faster than sound. I have no idea if you could measure the sound coming from the front. You also have to take into account that you are chasing an after image, since the plane is also faster than sound. But torpedoes use this, so the idea is valid.

[–] Peppycito@sh.itjust.works 3 points 11 months ago

Those are likely quite valid points. This being noncredible defense they have no place here.

[–] nuke@yah.lol 5 points 11 months ago

Put a bat in the missile and let's give Project Orcon another go

[–] at_an_angle@lemmy.one 12 points 11 months ago

Buzzwords are all that matters.

Also, too much of a credible point.

[–] Socsa@sh.itjust.works 4 points 11 months ago (1 children)

Most state of the art SAMs are technically hypersonic.

[–] Rednax@lemmy.world 3 points 11 months ago

Interesting. I did not know that!

[–] bradorsomething@ttrpg.network 2 points 11 months ago

It’s not that impressive… a bumblebee can emit the same small radar signature as well.

[–] corrupts_absolutely@sh.itjust.works 59 points 11 months ago* (last edited 11 months ago) (1 children)

my dad is stronger than your dad: study

[–] Wooki@lemmy.world 28 points 11 months ago (1 children)

My penis is longer than your penis: study

[–] yuri@sh.itjust.works 14 points 11 months ago* (last edited 11 months ago)

My penis can find and kill your ‘penis’ with hypersonic sperm: study

[–] TheBlue22@lemmy.blahaj.zone 38 points 11 months ago (1 children)

This is the propaganda way of saying "MY DAD CAN BEAT UP YOUR DAD!!!!!"

[–] Turun@feddit.de 1 points 11 months ago

And the funny thing is, both op and the newspaper in the screenshot are doing it!

[–] NOT_RICK@lemmy.world 37 points 11 months ago (1 children)

Maybe. Maybe not. Maybe fuck yourself.

[–] GentlemanLoser@ttrpg.network 9 points 11 months ago (1 children)

You must be the other guy

[–] PugJesus@kbin.social 6 points 11 months ago

How's your mother?

[–] slaacaa@lemmy.world 29 points 11 months ago

OMG, scary news. Time to increase the defense budget again, I guess…

[–] Froyn@kbin.social 19 points 11 months ago

Hypersonically it goes door-to-door knocking
"Any B-21's here? No, right then. On to the neighbors."

[+] jimbolauski@lemm.ee 17 points 11 months ago (2 children)

[deleted]

[–] Skirfir@feddit.de 9 points 11 months ago

This is the equivalent of someone telling you exactly which Bullshido moves they would use if they were attacked by a professional MMA fighter.

[–] Socsa@sh.itjust.works 5 points 11 months ago (1 children)

In a simulation where the only radar reflector is one simulated jet, and there is no real hardware, it's pretty easy to hit since the Pfa is effectively zero. In the real world, there's a thousand different things which will give some similar energy return and there's no simple way to filter that out without actually seeing the thing in real life.

Stealth isn't about zeroing the energy, it's about pushing it into an ambiguous state space where it cannot be distinguished from birds and shit.

[–] ExfilBravo@lemmy.world 6 points 11 months ago

I worked on the b-2 (has the same tech nearly). If you take a panel off to inspect anything or fix an issue the jet has to go to the paint shop to have the paint re-applied because its most of what makes it stealth. The paint absorbs radar.

[–] CJOtheReal@ani.social 4 points 11 months ago

Lets find out, these things armed with nukes vs China and their "hypersonic" missile

[–] Maggoty@lemmy.world 2 points 11 months ago* (last edited 11 months ago)

The most bat shit insane part of this is the missile absolutely cannot maneuver to intercept at hyper sonic speeds unless it's a nuclear warhead. In which case, yes we know you can down a plane with a nuke.