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Spray-on stealth ceramic could make faster, tougher spy jets Chris Davies - May 19, 2021, 11:41am CDT A new skin for stealth aircraft could make radar-invisible aircraft faster, more resilient, and even sneakier in the skies, by addressing one of their lingering design weaknesses. Jets like the B-2 Spirit are run by the US Air Force for clandestine reconnoissance missions, tapping their ability to evade the majority of radar tracking. However the high-tech skin that gives them those talents can be, in itself, a liability. Stealth aircraft aren’t “invisible” to the naked eye, and they aren’t completely slippery to radar either, but they’re considerably tougher to spot than regular aircraft. To do that, they use radar-absorbent polymers, which soak up the energy that a radar system sends out.

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