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stealth aircraft click to hear : stealth aircraft

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

radar-absorbent material click to hear : radar-absorbent material

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 : facet

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