Nation: Hiding in the Sky

Nearly 40 years of research into the art of blinding radar's all-seeing eye have made the basic technology well enough known—to the Soviets, among others—to permit a general description of the Stealth's features.

Size: The smaller a plane, the less surface it presents to radar waves. Thus the prototype Stealth aircraft undoubtedly is small. Jane's All the World's Aircraft, the authoritative catalogue compiled in England, reports that the early version was a single-seater, presumably about the size of a fighter.

Shape: Sharp angles and large projections—engine pods, for example —reflect radar waves well; curving lines do not. Accordingly, the Stealth is slickly streamlined.

Materials:...

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