A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Gary LaPook
Date: 2016 Jan 7, 11:13 -0800
Weclome aboard, you've come to the right place. Something else you might to look are the cylindercal slide rules used by the U-Boat navigators, the HR1 and the HR2 which were copies of the English Bygrave sliderule. Here are lilnks to a couple of previous posts about them:
I developed a very easy to construct version of this device that does the same computation, instructions are available on my website at:
We also discuss in flight celestial navigation on this site so if you seqrch the archive you might find some this of interest to you.