Advanced Inertial Reference Sphere (AIRS) inertial guidance unit of an LGM-118 Peacekeeper intercontinental ballistic missile.
https://s3-us-west-1.amazonaws.com/h...l_guidance.jpg
Previously:
https://www.homemadetools.net/forum/...215#post149973
https://www.homemadetools.net/forum/...474#post151126
https://www.homemadetools.net/forum/...171#post134605
