Yongpeng Sun-Tastaufen
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It used to be colloquially called radar absorbing material, a misnomer that did not make any sense.
RAM is a thin layer made up of trillions of tiny pyramids. So to you it looks like F-22 has flat surface. It does not. F-22 surface is trillions of tiny pyramids. So can scatter incoming radiation by a lot and reduce reflection of incoming radiation back to source. However, unlike a cloud which is made up of very thick (thousands of meters) of trillions and trillions of tiny water droplets and ice pellets which scatter and absorb incoming radiation that's why clouds look white, RAM on a plane or a ship is a very thin layer only a mm or so thick because of requirement for aerodynamics, so RAM on a plane or ship is not as effective as a cloud at scattering and absorbing incoming radiation, so probably can reduce RCS by a half or a third or maybe even a quarter compared to if no RAM is used.
https://en.wikipedia.org/wiki/Radiation-absorbent_material
@pakistanipower
RAM is a thin layer made up of trillions of tiny pyramids. So to you it looks like F-22 has flat surface. It does not. F-22 surface is trillions of tiny pyramids. So can scatter incoming radiation by a lot and reduce reflection of incoming radiation back to source. However, unlike a cloud which is made up of very thick (thousands of meters) of trillions and trillions of tiny water droplets and ice pellets which scatter and absorb incoming radiation that's why clouds look white, RAM on a plane or a ship is a very thin layer only a mm or so thick because of requirement for aerodynamics, so RAM on a plane or ship is not as effective as a cloud at scattering and absorbing incoming radiation, so probably can reduce RCS by a half or a third or maybe even a quarter compared to if no RAM is used.
https://en.wikipedia.org/wiki/Radiation-absorbent_material
@pakistanipower
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