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originally posted by: Astr0
a reply to: Sammamishman
I could sit and write 10 little blurbs about graphene, and you'd maybe at a push believe 3 of them.
How is graphene relevant to low observable vehicles? quite simply conductivity and transference.
Lets look at transference first - in a high speed vehicle aka aircraft, air resistance creates friction (which cannot be negated unless you utilise exotic 'nice stuff'. On top of air resistance you have incoming EM radiation, which again, generates both current and heat. So what can graphene do?
It can be 'layered' in a specific direction to rapidly move 'heat'. Start at the hot spot, run the layer to an area that is (A) normally not an area an enemies IR sensor will see, and (B) being cooled by either airflow or circulated super cooled fuel aka 'heat sink'.
The exact same method is used for incoming EM radiation. The F22 changes the electrical current to heat that's outside of the normal spectrum of enemy sensors. Great idea. Well, that was until the Russians and Chinese developed a sensor 'eye' that can cycle through the entire IR spectrum.
Again, on your 'hot spots', layer up. Run that graphene strip (sandwich, but you know what I am on about) across the aircraft into a storage medium. That's right, zero need to change it to heat. Its simply supped up.
We won't even start looking at graphene reinforced ceramics for aviation, as that's a touchy subject. ahhh hell, yeah why not?
So - you have your beautiful strong 3-D printed shell. Problem is, its cracking up and not holding to the tolerances you promised the USAF / DoD.
What the hell do you do?
Make a graphene envelope. You have an empty mould - you are about to layer down into it, but first in goes the graphene ribbon. Onto that goes the first layer, ribbon layered onto that, so on and so forth. Then voila, last layer is your graphene.
You just created a monster. Frankenstein would be proud. Crack out all of your snazzy jazzy paints, colour it pink, then grey to suit the USAF. The beauty is? your outer skin paints will also be impregnated, and has created a system that takes incoming EM AND heat and draws it into the aircraft to be either stored or absorbed.
That's worth the price tag alone.
originally posted by: Astr0
It can be 'layered' in a specific direction to rapidly move 'heat'. Start at the hot spot, run the layer to an area that is (A) normally not an area an enemies IR sensor will see, and (B) being cooled by either airflow or circulated super cooled fuel aka 'heat sink'.
originally posted by: MystikMushroom
If it's stored or absorbed, would the vehicle have to "cool down"? Also, would a vehicle be limited in its operations due to how much it can store/absorb? Would there be a way for the pilots to tell if their graphine "sponge" effect is nearly saturated?
originally posted by: darksidius
I read an article about the LRS-B and one of the futur mission will be interdiction like the Strike Eagle,and possibility close air support too, I feel the way of the LRS-B like a modern and stealth F-111 what you think about it ?
originally posted by: BASSPLYR
a reply to: Astr0
SO in some ways it can store energy and redirect it to power other systems on the craft? Wanna make sure I'm following you here. As you know I have had a recent fascination with the general topic and am trying to learn all I can to understand better the incident that spurred the interest I have.
originally posted by: BASSPLYR
a reply to: Astr0
3 occasions actually (the third was uneventful and mirrored the events of the first) Didn't post about it. Haven't seen it since either. Probably wont. Flight path has changed or something about my body has changed that doesn't allow me to see the craft anymore. (The latter's a crazy theory I'd rather not explain publicly)
I got from looking at it that it was beyond the league of any B3 or next gen plane. Way beyond.
But as for as the graphene. Is that right then. IT can use the graphene to shunt and store energy and if cleaver enough possibly redirect it to feed other systems on the plane. (In regards to the comment "... You could also utilise some of that to say, assist in your colour changing skin.")