Gregory's Server@kenshirriff was the guidance ever upgraded or are those 400 Minutemen still running on this vintage technology?
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Top-level
 @kenshirriff was the guidance ever upgraded or are those 400 Minutemen still running on this vintage technology? 1 comment
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@root42
The Minuteman guidance system was upgraded to the NS-50 in the early 2000s. The new system uses a MIL-STD-175A 16-bit processor. The Minuteman missiles are supposed to be replaced soon by the Sentinel, which is way over budget and delayed, so it's unclear when that will happen.