A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Bill Lionheart
Date: 2016 Sep 1, 12:16 +0100
Though it still depends on properly working watches - this tool allows to fix one's position without any tables and/or a sextant.
The (bootleg) drawings of Cruiserfix in PDF are attached to the post. Combined with the RMG photos - it is enough info to build and use the tool.
If not for the real navigation, at least as an educational accessory, I think it is an interesting thing to have.