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Old 5th May 2021, 17:42
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Asturias56
 
Join Date: Oct 2018
Location: Ferrara
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Originally Posted by Less Hair
This is what the SR-71 had.
https://timeandnavigation.si.edu/mul...igation-system
90 Meters precision at Mach 3+ is not that bad. This device is said to have inspired the "character" R2D2 from Star Wars.

Thanks - needs a bit of work to fit on my wrist I think........... but then the original GPS units wouldn't fit on my kitchen table
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