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ScienceDirect - Technol Rep Tohoku Univ ... - Garryck Osborne

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NICK COOK 129<br />

F-l 17 A, composed of its mass of angled flat panels, was "first-generation<br />

stealth."<br />

The B-2, or the Advanced Strategic Penetrating Aircraft, as it was<br />

known when it was still deeply gray, was a second-generation aircraft and<br />

this, according to Northrop, was manifest in its blended aerodynamic<br />

shape. Instead of being rough and angular like the F-l 17A, it was smooth<br />

and rounded—a product, Northrop claimed, of five years' worth of<br />

improvements in computing technology between the start of the Have<br />

Blue program and the ASPA.<br />

Improved software algorithms processing had allowed Northrop to<br />

come up with a shape—a refinement of the YB-49 flying wing jet bomber<br />

it had first flown in 1947—that allowed the aircraft to look and fly right<br />

and to remain invisible on enemy radar screens.<br />

Not only that, but according to LaViolette it had the capability to fly<br />

electrogravitically as well.<br />

In my basement, where the noise of the city couldn't intrude upon the<br />

sort of silence you needed to sift a decade's worth of documents and files<br />

on the arcane properties of stealth, I still wasn't happy about LaViolette's<br />

assertion, because of the absence of that all-important switch, the one<br />

that kicked in the B-2's antigravity drive system.<br />

There was one other beguiling aspect to Scott's story. His sources said<br />

that charging the airframe electrostatically not only helped to make the<br />

B-2 stealthy, it also reduced friction heating of the airframe, its sonic<br />

footprint and its drag.<br />

This last point was crucial. If it were possible to alter the "drag" or air<br />

resistance of an aircraft, you could either make it fly farther or faster or<br />

both.<br />

The drag reduction system was supposed to work as follows: By<br />

creating an electrostatic field ahead of an aircraft, it ought in theory to<br />

repel air molecules in the aircraft's path, allowing the plane, in effect, to<br />

slip through the atmosphere like a thin sliver of soap through warm<br />

water.<br />

Like antigravity itself, the whole notion of using electricity fields to<br />

reduce aircraft drag was heresy—it was, according to traditionalists, just<br />

smoke and mirrors. But here, in Scott's article, was a reference to<br />

Northrop having conducted high-grade research in 1968 on just such a<br />

phenomenon: the creation of "electrical forces to condition the air<br />

flowing around an aircraft at supersonic speeds." Furthermore, the<br />

California-based aircraft company had supposedly submitted a paper on<br />

the subject to the American Institute of Aeronautics and Astronautics<br />

that same year.

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