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A comment on SR-71 Blackbird Astro-Nav System (a.k.a. R2-D2) worked by tracking the stars. Parent comment

Re:SR-71 Blackbird Astro-Nav System (a.k.a. R2-D2) worked by... by ytpete on Monday September 25, 2023 @10:27PM (#37653580)
I'm guessing the DEF-H was some kind of electronic countermeasure jamming device, a newer version of this "Def B": https://en.wikipedia.org/wiki/Lockheed_SR-71_Blackbird#/medi...
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