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They do claim it works on all stealth planes including the F-35, but the B-2 is now 30 years old and was designed in the mid 1980s. Detecting it from 150 miles
by mikeyouse 7y ago
They do claim it works on all stealth planes including the F-35, but the B-2 is now 30 years old and was designed in the mid 1980s. Detecting it from 150 miles is impressive, but when they're equipped with 250 mile standoff air-to-surface missiles, ultimately not very useful. I'd be curious how much better the stealth is in the world of supercomputers and CFD for modern planes as well.
- LifeLiverTransp 7y agoThose missiles will help you how though? They are mostly radar seeking for target information.. this doesent emit though. This only collects. So you need reconissence by drones ( easily detected with this) .. Sorry, but this literaly breaks a billion dollar technology. Due to the distributed nature of the natural sources, it doesent matter what angle you reflect - a stealthed object will always be a distortion to the background, which alot of computation can the filter out.
- kabouseng 7y agoWell it's passive radar. So you don't have to outperform the stand-off range of the target, since you are invisible to the plane too.
- nitrogen 7y agoIs there any risk of demodulator IF or other leakage from these receivers?
- amluto 7y agoGiven that it’s entirely reasonable to build a 3 GHz baseband receiver these days, you don’t need IF. The whole thing can probably be made to radiate almost indistinguishably from a cell phone or computer.
- londons_explore 7y agoA cell phone moving at that kind of speed will stand out.
- nitrogen 7y agoWould a passive radar usually be moving?
- deleted 7y ago[deleted]
- HumblyTossed 7y ago> ...but the B-2 is now 30 years old and was designed in the mid 1980s. Given that the B-52 is 65 years old, built with 1955's technology, I would expect something more sophisticated to have a longer shelf life than 30 years.
- WalterBright 7y agoThe B-52 is only useful after the enemy's air defense systems have been completely suppressed. It's mostly just a truck.
- nradov 7y agoThe B-52 can also carry long range stand off weapons.
- catalogia 7y agoThat's not how it works. There are loads of planes much younger and more sophisticated than the B-52 which are no longer in service. To name just a few high profile examples: the SR-71, F-117, and Space Shuttle.
- madengr 7y agoNot much. The F-117 is stealth mostly due to shape. The B2 stealth is mostly due to materials and construction techniques. You can run optimization routines to reduce scattering, but it’s not going to be huge improvements This is a good book that discusses several techniques: https://www.amazon.com/Radar-Man-Personal-History-Stealth/dp/1450248020/ref=nodl_ https://www.amazon.com/Radar-Man-Personal-History-Stealth/dp...
- nabla9 7y agoB-2 is old but the stealth shaping is still much better than F-35 and there is much more internal structure inside the wings that absorb radar energy. The RAM paints used in B-2 are probably up to date with current technology as well. B-2 is also inherently more stealthy to to Rayleigh scattering than F-35 is due to the size. Stealth is not magic. Shaping is 90% of the stealth, rest is the materials and details. Vera-type radars may be be able to detect stealth aircraft with low angular resolution but they can't be used for targeting.