Timeline for Would an aircraft covered in radiation-absorbent sponges be invisible to radar?
Current License: CC BY-SA 4.0
16 events
| when toggle format | what | by | license | comment | |
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| Jan 26, 2023 at 14:44 | comment | added | user535733 | I don't quite see how such a pincushion of pyramids could get off the ground. Aircraft need to generate lift from the aerodynamic shape of wings (or occasionally body). | |
| Jan 26, 2023 at 14:32 | vote | accept | Fulano | ||
| Jan 26, 2023 at 3:19 | comment | added | Criggie | There's an underlying question here - can a usefully big bunker be made to fly? Anatov AN-225 has a max cargo of 231 tonnes, can one make an effective bunker with that amount of mass ? | |
| Jan 25, 2023 at 23:16 | history | edited | Fulano | CC BY-SA 4.0 |
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| Jan 25, 2023 at 21:54 | comment | added | Michael Hall | It's hard to request a hard science answer when the scenario is absurdly non-hard science. | |
| Jan 25, 2023 at 21:26 | comment | added | JBH | BTW, did you really mean to ask for hard-science answers? Because neither of the two answers provided so far meet the expectations of that tag. | |
| Jan 25, 2023 at 21:24 | comment | added | JBH | Let's assume your sponges could absorb 100% of radar emissions. (a) Against an open sky, your plane would have no radar signature. (b) Against a mountain side, your plane would be a suspicious hole against the reflection of the mountain. Indeed, objects that would reflect radar, passing behind the plane, would produce a suspicious plane-shaped "hole" in the reflected image. So while the solution would be harder to spot, it's still not impossible to spot by radar. | |
| Jan 25, 2023 at 19:49 | history | became hot network question | |||
| Jan 25, 2023 at 18:35 | answer | added | Richard Kirk | timeline score: 2 | |
| Jan 25, 2023 at 12:16 | comment | added | AlexP | No need, @L.Dutch provided the answer. | |
| Jan 25, 2023 at 12:04 | answer | added | L.Dutch♦ | timeline score: 11 | |
| Jan 25, 2023 at 12:01 | comment | added | Fulano | @AlexP I think your comment would be a great answer, to be honest. :) | |
| Jan 25, 2023 at 11:56 | comment | added | AlexP | (1) There is no such thing as "invisible to radar". The best that can be done is make the thing harder (not impossible, just harder) to detect by certain specific kinds of radar. (2) There is no way to make an object the size of a bus hard to detect by any kind of half-decent military radar at short range, say maybe 5 km. (3) Which is fine for modern stealth war aeroplanes, because they can cover 5 km in 10 seconds; but your slow moving target will spend 5 to 10 minutes in the detection envelope. | |
| Jan 25, 2023 at 11:54 | history | edited | Fulano | CC BY-SA 4.0 |
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| Jan 25, 2023 at 11:52 | history | notice added | L.Dutch♦ | Hard Science | |
| Jan 25, 2023 at 11:46 | history | asked | Fulano | CC BY-SA 4.0 |