Brilliantly written and documented Gary
I visited the KSC last year for 3 days and saw a cut a way section of an IU and a mock up of the Apollo inertial guidance system to scale
I have an electrical engineering background and I was astounded by the simplicity of its design and basic electronics ( mostly electromechanical components) This little “box and ball” precisely guided that enormous Saturn 5 rocket with 7.5 million pounds of thrust from the launch pad into low earth orbit and again towards the moon after TLI
You can’t beat old technology , big , ugly , robust , slow , but it damn worked and it put man on the moon !!
Great post, well done !!
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