Inside an artificial horizon.
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Previously:
https://www.homemadetools.net/forum/...387#post173377
https://www.homemadetools.net/forum/...105#post168644
https://www.homemadetools.net/forum/...015#post134009
https://www.homemadetools.net/forum/...225#post130651
https://www.homemadetools.net/forum/...404#post169712