EEVblog #854 – B52 Bomber Automatic Astro Compass Teardown

What’s inside a Kollsman Instrument Corporation MD-1 Automatic Astro Compass mechanical analog computer from a B52 Bomber?
Part of the star tracker inertial navigation system that calculates the altitude and azimuth.
Thanks to The Geek Group
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4 comments

  1. The big advantage of mechanical analog computers is, of course, EMP resistance. This was, and still is, a big deal. The traditional enemy had, and still has, EMP-releasing AA shells, missiles, etc… Also, I much suspect that the band-spring mechanism resets the computer in the event of gimbal lock. Gimbal lock is a very common problem with the mechanism shown, which clearly uses Euler Angles to do the azimuth and elevation computations.

  2. Nice post. I learn something new and challenging on websites I stumbleupon everyday. It’s always exciting to read articles from other authors and practice a little something from their web sites.

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