NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Jerry Mason
Date: 2016 Jan 8, 04:47 -0800
Many thanks to Gary LaPook for the interesting references concerning the HR Position Line Slide Rule whch I was completely unaware of. I am looking into this with my Germn U-boat contacts. I have learned that the German version of the Nautical Almanac was the Nautisches Jahrbuch and the rough equivalant of HO229 was F-Tafel : Tafel zur vereinfachten Berechnung von Höhenstandlinien. I am wondering if any other references were necessary. In 1944 some U-boats deployed with a gyro sextant which was spun up with compressed air and then used to take sights without a clear horizon. I recently translated the war diary (KTB) for a boat that carried this device and made some comparisons with the regular sextants. You can see the KTB here http://uboatarchive.net/KTB1228-2.htm
