NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Compss Adjustment training
From: Gary LaPook
Date: 2026 Feb 21, 20:57 -0800
From: Gary LaPook
Date: 2026 Feb 21, 20:57 -0800
The American Practical Navigator, HO 9, has a complete discussion about all the factors affecting the compass and adjustment. You can download a copy at this URL.
There may be other places to download a better copy.
https://archive.org/stream/bwb_S0-CBU-308/bwb_S0-CBU-308_djvu.txt






