NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Emergency navigation: a Cruiserfix tool.
From: Tony Oz
Date: 2016 Sep 1, 02:51 -0700
From: Tony Oz
Date: 2016 Sep 1, 02:51 -0700
Though it still depends on properly working watches - this tool allows to fix one's position without any tables and/or a sextant.
The "Yachting Monthly" article is here. The Royal Museums Greenwich exhibit page for the Cruiserfix is here.
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.