NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Instrument for solving spheric
From: Alexandre Eremenko
Date: 2012 Apr 26, 11:31 -0400
From: Alexandre Eremenko
Date: 2012 Apr 26, 11:31 -0400
Close inspection of pictures of astrocompasses suggests that the accuracy is likely to be 1 degree, no better. About the same as of the star globe in good condition. What puzzles me is how they were supposed to set this starcompass horizontally on a moving airplane:-) It has adjusting screws like an artificial horizon, and presumably bubble levels. The airplane must fly really straight and with constant speed to enable the navigator to use such a device. It is more useful for finding the directions after an emergency landing:-) Alex. On Thu, 26 Apr 2012, Geoffrey Kolbe wrote: > > At 15:00 26/04/2012,Zvi Doron wrote: >> You mean one minute > > No, I believe I reported Wolfgang accurately. > > Geoffrey Kolbe > > >> Sent from my HTC >> >> Wolfgang said that with care, an accuracy of one degree was >> possible using the >> astro-compass. >> >> Geoffrey > > > > > > : http://fer3.com/arc/m2.aspx?i=119274 > > >