I was watching a youtube video about the b2 this morning. It mentions that while it’s not completely invisible to radar, it only has a cross section about the size of a bee. It says that radars have to fine tune their displays to only show larger objects or else it would be too cluttered.
I guess my question is, why can’t they tune their displays to only show objects moving faster than ~ 300 mph?
In: Physics
You might be able to know that a stealth aircraft is *there* with this method, but you can’t necessarily get a *lock* – pointing a beam at something the size of a bumblebee moving hundreds of miles an hour is real hard, to massively oversimplify.
Also a lot of radars work on people physically watching a screen – you want to show everything with *any* kind of reflection, birds, clouds, bits of cold air and all, and spot the one tiny thing going in a suspicious direction very fast? Not every radar can do that automatically. Sure, the ones that can’t are *old as balls*, but have you seen the age of the gear most units are using in Ukraine?
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