NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Centring Error Detector
From: Brad Morris
Date: 2014 Jan 20, 16:25 -0800
From: Brad Morris
Date: 2014 Jan 20, 16:25 -0800
Hi Frank
Here's a 7 year old post that caught my eye.
It describes a method that permits you to measure the arc error. It all makes sense to me but I'm trying to figure out how the prism is aligned to the optical path assigned to the horizon.
Would you happen to have a copy of the patent?
Alex,
you mentioned that this equipment was offered by Heath and you had the catalog / book for it. Do you have it still?
Brad
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