FighterJock
ACCESS: Above Top Secret
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sferrin said:RadicalDisconnect said:PaulMM (Overscan) said:North American Rockwell registered a near identical patent in 1968, related to their FX design.
https://www.google.com/patents/US3509568
This is for the FX that resulted in F-15? I'd be surprised if they were considering reducing RCS that far back.
You may have heard of this beast:
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The losing competitor:
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Both had features ahead of their time that appear right at home on today's stealth aircraft. I am QUITE certain they were working on reducing RCS that far back.
The SR-71A did have an early form of RAM on the leading edges of the wings and on the chines, I did hear a rumor years back that if you hit a table with one of those RAM wedges the table would get a dent and there would be no damage to the wedge.