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Wild Blue Yonder 1: 50 Years of Gs & Jets
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Wild Blue Yonder - Episode 1 - 50 Years of Gs and Jets (Digital Ranch) (Spectrum Holobyte)(1-107-40-101)(1994).iso
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00147_Field_147.txt
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1994-08-29
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Grumman's Sweep Forward
After the Ju 287, very few models or mock-ups of forward-swept
wing aircraft were ever completed. In the late 1970s, after
years of design study, the U.S. Defense Advanced Research
Projects Agency (DARPA) contracted Grumman Aerospace Corporation
to create a forward-swept wing research plane -- the X-29.
The U.S. Defense Department became interested in the idea of
forward sweep with the widening application of composite
materials in aircraft design. With these new materials,
engineers could build aircraft of lightweight structures and
immense rigidity. The advocate of this program was Air Force
Colonel Norris J. Krone, Jr. who had studied forward sweep
throughout his career.
Except for the wing of advanced composite material, the X-29A is,
for the most part, conventional in its construction. Like its Ju
287 predecessor, the X-29A used existing components wherever
possible to cut development costs. The forward fuselage is that
of a Northrop F-5A Freedom Fighter, with the gun bays adapted to
house flight control avionics and flight test instrumentation.
The main landing gear and other assemblies are taken from F-16
stocks, and the engine is a General Electric F404, used in the
Northrop YF-17 light-fighter competition.