NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: slide rule sight reduction accuracy
From: Paul Hirose
Date: 2009 Jun 19, 19:07 -0700
From: Paul Hirose
Date: 2009 Jun 19, 19:07 -0700
Gary LaPook wrote: > But to do a simulation you do not need to get to the step of converting > Az to Zn since the Hc is computed from Az not from Zn. My program evaluates both altitude and azimuth accuracy. Since you're not interested in the latter, I can fake the computation and ignore the statistics for azimuth. Can't you describe the method in one compact but complete message, omitting other details? By now I think you have given me about 10 messages, counting the links to the archive. And I recall a link to a PDF as well. I'm sure everything needed is in there, somewhere, but it's way too much stuff to plow through for someone who has zero interest in the Bygrave solution per se. In fact, up to now I've simply deleted messages on that subject without reading. All I need to know are the formulas and rules you want to use, as well as enough about your Bygrave device that I can figure out its trig scale accuracy relative to a 10" rule. (I do remember you wanted the computation simulated on a 10" rule as well.) It's not necessary to mention differences between your variant and genuine Bygrave. That'll just make my eyes glaze over. -- --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---