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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 stevenwoo on Monday September 25, 2023 @09:48PM (#37653284)
The navigator verified their position with the device while they were still on the ground.
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