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Iirc, that's how the space shuttle control systems worked as well, but they were not COTS...
by readthenotes1 3y ago
Iirc, that's how the space shuttle control systems worked as well, but they were not COTS...
- dr_orpheus 3y agoYes, most of the manned missions (at least Apollo and beyond as far as I'm aware) use the belt and suspenders approach of triple voting rad-hardened processors. So 3x RAD750s in a voting redundancy for main control systems.
- mhandley 3y agoI believe the shuttles used five computers - four ran the same software and voted if there was a discrepency, whereas the fifth ran simpler independently developed software in case a common bug rendered all four primary computers inoperable.