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stealth aircraftclick to hear

Aircraft that cannot be detected by radar because of the radar-absorbing facets covering its fuselage.
stealth aircraft radar-absorbent material facet

radar-absorbent material click to hear

Material that absorbs radar waves before they strike any metal part of the aircraft in order to muffle the sound of the echo.

facet click to hear

Flat surface with a protruding edge that disperses any radar waves hitting it and makes them undetectable.